Ex Poser

What will happen when David tries out Boffin’s lie detector at school? Sometimes, the truth can be a little too close for comfort.


Do the preparation exercise first and then read the story. Don't worry if you don't understand every single word. Finally do the exercises to check your understanding.


Before you read the story do this exercise. It will help you to understand some of the more difficult words in the story.

Ex Poser

by Paul Jennings

There are two rich kids in our form. Sandra Morris and Ben Fox. They are both snobs. They think they are too good for the rest of us. Their parents have big cars and big houses. Both of them are quiet. They keep to themselves. I guess they don’t want to mix with the ruffians like me.

Ben Fox always wears expensive gym shoes and the latest fashions. He thinks he is good-looking with his blue eyes and blond hair. He is a real poser!

Sandra Morris is the same. And she knows it. Blue eyes and blonde hair too. Skin like silk. Why do some kids get the best of everything?

Me, I landed pimples. I’ve used everything I can on them. But still they bud and grow and burst. Just when you don’t want them to. It’s not fair.

Anyway, today I have the chance to even things up. Boffin is bringing along his latest invention – a lie detector. Sandra Morris is the victim. She agreed to try it out because everyone knows that she would never tell a lie. What she doesn’t know is that Boffin and I are going to ask her some very embarrassing questions.

Boffin is a brain. His inventions always work. He is smarter than the teachers. Everyone knows that. And now he has brought along his latest effort. A lie detector.

He tapes two wires to Sandra’s arm. ‘It doesn’t hurt,’ he says. ‘But it is deadly accurate.’ He switches on the machine and a little needle swings into the middle of the dial. ‘Here’s a trial question,’ he says. ‘Are you a girl?’

Sandra nods.

‘You have to say yes or no,’ he says. ‘Yes,’ replies Sandra. The needle swings over to TRUTH. Maybe this thing really works. Boffin gives a big grin.

‘This time tell a lie,’ says Boffin. ‘Are you a girl?’ he asks again.

Sandra smiles with that lovely smile of hers. ‘No,’ she says. A little laugh goes up but then all the kids in the room gasp. The needle points to LIE. This lie detector is a terrific invention!

‘OK,’ says Boffin. ‘You only have seven questions, David. The batteries will go flat after another seven questions.’ He sits down behind his machine and twiddles the knobs.

This is going to be fun. I am going to find out a little bit about Sandra Morris and Ben Fox. It’s going to be very interesting. Very interesting indeed.

I ask my first question. ‘Have you ever kissed Ben Fox?’

Sandra goes red. Ben Fox goes red. I have got them this time. I am sure they have something going between them. I will expose them.

‘No,’ says Sandra. Everyone cranes their neck to see what the lie detector says. The needle points to TRUTH.

This is not what I expected. And I only have six questions left. I can’t let her off the hook. I am going to expose them both.

‘Have you ever held his hand?’

Again she says, ‘No.’ And the needle says TRUTH. I am starting to feel guilty. Why am I doing this?

I try another tack. ‘Are you in love?’ I ask.

A red flush starts to crawl up her neck. I am feeling really mean now. Fox is blushing like a sunset.

‘Yes,’ she says. The needle points to TRUTH.

I shouldn’t have let the kids talk me into doing this. I decide to put Sandra and Ben out of their agony. I won’t actually name him. I’ll spare her that. ‘Is he in this room?’ I say.

She looks at the red Ben Fox. ‘Yes,’ she says. The needle points to TRUTH. TEST

‘Has he got blue eyes?’ I ask.

‘No,’ she says.

‘Brown?’ I say.

‘No,’ she says again.

I don’t know what to say next. I look at each kid in the class very carefully. Ben Fox has blue eyes. I was sure that she loved him.

‘This thing doesn’t work,’ I say to Boffin. ‘I can’t see one kid who doesn’t have either blue eyes or brown eyes.’

‘We can,’ says Boffin. They are all looking at me.

I can feel my face turning red now. I wish I could sink through the floor but I get on with my last question. ‘Is he an idiot?’ I ask.

Sandra is very embarrassed. ‘Yes,’ she says in a voice that is softer than a whisper. ‘And he has green eyes.’

© Paul Jennings

Reprinted with the kind permission of the publishers Penguin Books (Australia)

This story was selected as part of the BritLit project. To find out more about BritLit visit our TeachingEnglish site.


Imagine you had a lie detector! Who would you like to ask questions to, and what would you ask them?

No votes yet
Personal online tutoring
EnglishScore Tutors is the British Council’s one-to-one tutoring platform for 13- to 17-year-olds.


Submitted by RieBi on Sun, 07/11/2021 - 12:33

The story was great and i'd enjoy to have a lie detector. But i don't know when in particular i'll be using it.

Submitted by hermione123 on Fri, 03/12/2021 - 12:02

I dunno. I mean, I haven't gotten any idea. But surely a lie detector will really help many people. And there should be laws of the lie detector usage. So not everyone can use it, and people who can use it is only allowed to ask the necessary question. A group of my friends make a lie detector for a competition. And it's pretty awesome.
Profile picture for user empty

Submitted by empty on Thu, 06/13/2019 - 13:29

Everybody tells fibs sometimes and that could make them tell bigger lies , don't you agree ?

Submitted by hermione123 on Fri, 03/12/2021 - 11:50

Yeah, so true. Sometimes you just need to tell the truth so the situation won't get worse.

In reply to by empty

Submitted by fsk on Sat, 04/20/2019 - 15:39

I wouldn't like to ask questions.I think if anyone is lying to me he is doing it for a reason. so i wouldn't like to embarrass that person.

Submitted by saracen on Sun, 04/07/2019 - 20:44

I would start a company of 'lie detecting machines', but I would never sell them,rather I would rent them in exchange for money so that they can be used as powerful weapons and I can be one of the most powerful people in this 'planet', maybe in the 'universe'. peace be upon all of us.
Profile picture for user Batgirl

Submitted by Batgirl on Thu, 06/14/2018 - 16:06

I wouldn't really want to ask anyone questions. I like when people have something mysterious in them, so I don't want to know too much information about them.
English courses near you