Yeah that clarification helps and I agree there - there's a bunch of exceptions of 'joking bets' etc. I first read the offer as "I'll give you $100 if you can r

Yeah that clarification helps and I agree there - there's a bunch of exceptions of 'joking bets' etc. I first read the offer as "I'll give you $100 if you can run there and back in under a minute" rather than each party being able to win the $100 which would indeed satisfy the consideration requirement.