When I was in college (99-2000ish, maybe?), one of my roommates was an art major with a graphic design bent, and he had this high end printer and would copy and print $1 bills and take 20 at a time over to the vending machines around the corner from our apartments once a week or so. After about a month of doing this, the machines disappeared.
Of course, he's the same roommate who later got arrested for wire fraud and grand theft.
Of course, he's the same roommate who later got arrested for wire fraud and grand theft.