A fly feels a bug on its back.
"Hey, bug on my back, are you a mite?" the fly asks.
"I 'might' be," giggles the mite.
"That's the worst pun I've ever heard," groans the fly.
"What do you expect?" says the mite. "I came up with it on the fly..."
MORE WAYS TO LAUGH
Dan the Man 009 : Voted