Yupp. Somebody built a house once, near my Railstation. it was a little log-bunker, quite ugly... so I boobytrapped it with tnt, filled the whole fucking upper part with TNT and made two mines on the two doors.
Then I put a message into the board "Hey, there is no gold hidden somewhere!" and with that message the players started to look for it...
Next day I only found a hole instead of the house.
I usually do not grief. This loss was not a big one, there were no chests or something else inside that house. not even torches. (thats why a creeper got me when I found it. -.-)