Fruit Machines
They have a payout on them, and sometimes people leave 10p or 20p 'credit' in them.
So if the following is true
(amount in machine / cost of play) < (payout)
Then you'll ultimately come out ahead?
EDIT: HTML escaping needed
(
Cadmus has teh uplikn coeds at,
Mon 26 Oct 2009, 19:04,
archived)