and yeah, if it's counterfeit... you are stuck with it -- especially now since you have revealed to all that you suspect it. :) i think it's only a crime to knowingly pass bad money...

this also makes me wonder about all the places that have signs up saying "because of counterfeiting, we do not accept $50s or $100s". all that tells a counterfeiter is that there is no training of the staff to spot bad money and so they can safely pass all the 5s 10s and 20s they want (which, by the way, the the most often counterfeited...)