I suppose you think that's funny

So I bought a book about bookbinding, and when I opened it, all the pages fell out.

Nah, they didn't really. Would've been funny if they had, though...

That's my kind of joke.

The funniest cartoon I ever saw was of a man lying on a psychiatrist's couch, saying, "I don't suppose it's much compared to other people's inferiority complexes".

Ah, so funny.

I was going to go on an assertiveness course, but I lost the form and didn't like to ask for another.

I was going to buy a book about positive thinking, but it probably wouldn't do any good.

I was going to buy a book about improving my memory, but I forgot.