A man walks into a bar, orders a pint, drinks it, urinates all over the floor, and runs away.
The man comes back after a few days and orders a pint.
The landlord refuses, reminding him of his previous behaviour.
"Please give me another chance," the man begs, "I've been getting psychiatric help and it's working very well."
So the landlord relents and sells him a pint.
The man drinks it and urinates all over the floor.
The landlord says "I thought you said your psychiatric help was working well?"
The man replies "That's right, I don't get embarrassed about it any more."