So there's this guy from the council stood in Trafalgar Square, somewhat concerned about all the pidgeons and associate mess. This bloke walks up to him and says "You know, I could get rid of all of these pidgeons for you."
"Yeah?" replies Mr Council, "How much?"
"Fifty grand!"
"Oh right, and I suppose you want money up front?"
"Oh no, not at all. Meet me here tomorrow, I'll get rid of all the pidgeons, and then you can pay me."
Hardly believing his luck, Mr Council goes off and gets the cash, and returns the next day. The stranger walks up carrying a small cardboard box.
"I've got the money," says Mr Council, waving the attache case around, "Now get rid of the pidgeons".
The stranger opens the box, takes out a bright pink pidgeon, and throws it into the air. The pink pidgeon flies up and starts circling, and all the other pidgeons follow it, mesmerised. Once all of the pidgeons are in the air, the pink pidgeon flies over to the Thames, and nose dives towards the water. Just at the last minute, the pink pidgeon pulls up. The others aren't so lucky, and crash into the water and drown.
The pink pidgeon then flies back, lands and hops into the box.
"That's absolutely amazing" says Mr Council, "here's your money."
The stranger starts to walk away, when Mr Council turns round and asks...
"You haven't got a pink lawyer have you?"