Three young chaps were walking along a riverbank, and spotted David Cameron and Nick Clegg drowning.

Without a thought for themselves, they jumped in and dragged them out.

"Thanks guys!" said Nick and Dave. "How can we reward you?"

First young lad say "A Ferrari please". "Sure - and you?" "A Playstation please" said the second.

"And how about you young man?" beam Dave and Nick.

"A Wheelchair please sir"

Our Dave looks puzzled "What do want a wheelchair for - you don't look disabled?"

"No" says the lad. "But I'm gonna be once my dad finds out who I've saved"