ORIGINAL: SSRCCPREZ
Ummm.... Commandment 3 of 10 though shalt not steal. Even without a name and phone number the thief in question knows who's it is and that is wrong!!!!
However, I would probably toss the two of them out of a club for the fist fight,but it would never have come to that in our club because the officers of our club would have done something immediately about the situation. The officers here are really partly to blame. Anyway you look at it, it is a sad situation.
You had best follow the rules when you do that and provide for due process. Your bylaws have to provide for that action, or you will find yourself without AMA insurance if the culprit sues, and it HAS happened.
I was in the Marine Corps, and I like both of littlecrankshaf's ideas best of all so far. However the comment about possible health changes and dementia are not to be ignored. Physical violence at the flying field should always result in a 911 call and appropriate charges. That way the authorities get to decide what the problem is rather than you getting stuck in the middle.
C/F I put mine on the forward side of the number 1 former. And on the reverse side of the #3 one. And on the reverse side of the turtle deck. And on the face of the wing mount block. And. . . .
Yet I STILL had a crash carried off before I could get to it. Recovered the engine in a flea market a month later (initials on the mounting lugs and all) for $7.