I'm not saying he's dim but...
I've changed my mind
Great, does the new one work any better ?
Did you hear about the man who was so stupid that when he picked his nose he tore the lining of his cap ?
How do you make a stupid person laugh on a Thursday ?
Tell him a joke on Monday
How dare you tell everyone I'm stupid
I'm sorry, I didn't realise it was a secret
How can you kill an stupid person with a coin
Throw it under an oncoming lorry
I love biscuits
That's because your crackers
What's red and really stupid ?
A blood clot
How long can someone live without a brain
Hoe old are you ?
How did you burn your ear, you wern't ironing when the phone rang again were you ?
Why did the stupid person plant coins in his garden ?
He wanted to raise some hard cash
I don't like soup
I expect you can't get it to stay on the fork can you.