What did the Pacific Ocean say to the Atlantic Ocean? Nothing; It just waved.
What's the difference between a flea-bitten dog and a bored visitor?
One's going to itch, the other's itching to go!
What did the idiot do with the flea in his ear?
He shot it!
What do you call the flea that lives in the idiot's ear?
The space invader!
Why was the glowworm unhappy?
Because her children were not very bright!