I told the 'A man walks into a bar' one here before in this forum!
And the first is just an alteration to one posted earlier here.
Now this is a good (Bad) one:
Two me are walking through a park. Then they are nearly run over by a bus. They run and run till they find a house. The break down the door and hide, but then they realise that the house is occupied. By Bears. Disbelievingly, they run for their lives, only to find themselves at a brick wall. Dead end. They turn around, and the mad bus and the bears are at their heels. They climb the wall, and jup over, only to fall into a large pit.
They are engulfed in darkness, and suddenly Tom hears his friend screen in agony. he turns around, squinting in the dark, and sees his friend dead. Something had rippd off his head. It becomes brighter, and on the wall in front of him, it says, turn around.
He turns around, and sees...
Nothing, as whatever it was killed him in a flash