Jeff wrote.......I'm REALLY good at miss-placing allen wrenches, damned trolls will snatch one in a heart beat..........
I don't think you are shouting at them loud enough !!! Anyway, to thwart them, change the allen bolt for a made up bolt with a pin for the handle. A suitable washer thickness will ensure it is in the right place for tightening/slackening and if the handle is firm enough, no troll will be able to take it away.
HTH
Ellis
