When you are at a shoot, or the practice range, or just getting your bow tuned at the local shop - don't put it down close to anyone else's bow.
Don't rack it so that it is "cheek-by-jowl" with a group of bows. By rack it, I mean putting it down in (or on) one of those floor stand style bow holders that can hold from 4 to 14 bows.
I happened to be using one at the last shoot that I attended. Plenty of shooters were doing the same thing so the bow rack was crowded. Anyway, when I picked up my "baby" to shoot I noticed that one of my fiber optic threads was broken.
I know darned well how careful I am, so I figure it had to have been someone who set their bow down beside mine (probably hoping some skill would rub off on to his/hers ).
Well........just be careful out there kids - it's a cold, cruel jungle.
Thank goodness for the Fitz Fiber threads.....they are very bright even when broken off at the pin!!