A Lion in an London Zoo was lying in the sun licking it's arse when a Visitor turned to the keeper and said: "That's a docile old thing, isn't it?"
"No Way," said the keeper.
"It's the most ferocious beast in the Zoo. Why just an hour ago, it leapt the fence, dragged a visiting politician into the cage and completely devoured him before we could do anything about it."
"Hardly seems possible," said the astonished visitor, "but why is it lying there licking it's arse?"
"The poor thing is trying to get the taste out of it's mouth." Replied the keeper.