So there's this guy walking down the street and he falls into a great big hole. A doctor walks by and the guy yells up to the doctor 'hey, I fell in this hole, can you help me out?' The doctor writes a prescription, throws it into the hole, and walks on.
A priest then walks by and the guy yells up to the priest 'father, can you help me? I fell into this hole and I can't get out'. The priest says a prayer, throws down a Bible and walks on.
And then a friend of the guy walks by and the guy yells up 'hey, buddy, I'm stuck in this hole and -' and before he can finish the friend jumps down into the hole.
'What the hell are you doing?' the guy says, 'Now we're both down here!'
'Yup', says the friend, 'But I've been down here before and I know the way out.'