In college I worked in a call center. Our boss, to incentivize us, bought a bunch of cool gifts and displayed them around the office and we would win them if we closed a certain amount of sales. We had iPod shuffles, Nintendo DSs, gift cards, etc. It worked great..... for about 3 days until they all went missing. One of the employees just snatched them all and since there were no security cameras, they couldn't nail the delinquent.

So my boss hatched a brilliant idea: random drug screening. We all show up to work and my boss tells each of us that we need to go take a urine sample. I don't even know about the legality of something like this on the spot, but all of us agreed. All of us except for one dude. I saw my boss talking to one guy who was a bit rougher around the edges. They both nod at each other and give each other a fist bump and then this guy just peaces out of town.

I approach my boss and he is dying laughing. He's like, "Bill just came to me and said, 'yeah, I'm not even gonna bother to take the drug test because I know I won't pass, so I'm just gonna resign.' We nodded to each other and I gave him a fist bump and wished him well."

A few weeks later my boss started displaying the prizes again and this time they didn't disappear. Good old Bill.