I've just watched Zac Purchase and Sarah Webb take a ridiculous gamble on a £20,000 question (they had no idea what the answer was), get it wrong and go away with just £1,000.  So their charity lost out on an extra £19,000!   Fair enough, they had already gambled once, but from a choice of two.  Would they I wonder have been so reckless if they had been pocketing the winnings themselves? Will they stump up out of their own pockets to make it up?