Two neighbours get together. 

“Guess what – I killed my mother-in-law,” says one. 

“Liar!” says the other. 

“Come along, I’ll show you.” 

So he takes his neighbour to his garden. Right on the front of the house there is a fresh grave, from which a naked butt peeps out. 

“Why did you leave the bottom out?” the neighbour wonders. 

“Well, I figured i’ts an easy way to park my bike.”