Most of the slot machine tokens have some wording on them that says "This token is only valid at _______ Casino".

My question of the evening is... If I am at Mandalay Bay and drop a few Circus Circus tokens in the slot machine... AND hit "THE BIG ONE".... could/would Mandalay refuse to pay me?

Also,

1. Is there a way to determine which were the last tokens put into the slot that resulted in that BIG WIN?

2. When "cashing out" credits from a slot, It is not unusual to sometimes find tokens from competing casinos mixed with the ones from that casino.
Therefore - IF the casino COULD void a Jackpot based on the tokens used to win that Jackpot - should I look over each token I drop in a slot to make sure it is from the casino I an playing in at that time?

Enquiring Minds want to know...

Thanks,

Steve Snowden