Because he is lying.
Bill Cosby
They will tell you.
You go on to bed, I'm just going to hang here a while.
It's because he heard hospital beds have a high mortality rate.
She kept sitting on Pinocchio's face and screaming "Lie to me! Lie to me!!!"
Because they've been lied to about what 8 inches look like their whole lives.
Driver: I don't believe everything I read.
When he was told to "go big or go home," he only had one option. (I've posted this joke here before, but I believe I've been the first, so if you recognize it as a repost it's because I wanted to tell it again!)