As a DM you will watch a lot of cheaters or grievers do some really silly or even stupid things...
The funniest thing I got to witness was this one exploiter/cheater, who use to dupe item by dropping them & picking them up, so I made a script the kills/buys items when you drop them, it was funny to watch him lose his items from "trying" to dupe them. (With the exception of a weapon during combat) He picked up on the weapons during combat and I got to watch him try to dupe these, of course at this point I decided "It was time to reprimand him without confrontation." So, I spawned a 5 really hard creatures on him which pick your pockets... It's amazing to watch players react to being picked pocketed, because the monsters are concealed they are really hard to hit!
We all know those kind of monsters which drive you mad, I've seen Pick Pocketing monsters be more feared than any other kind of monster, but I don't spawn them normally, they are reserved for those who love to exploit / cheat..
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