I keep mine clipped in my left front pocket and this has happened a time or two to me as well
I would rather it come apart in my pocket than to come out of my pocket though
I keep my keys in the same pocket and normally the light stays in there fine but I have successfully lost it out of my pocket on at least 3 or 4 occasions where I lost it
Thankfully it has been found by co-workers that knew I carried it and we have a very trusyworthy bunch of people working with us
I did however lose my silver one and one that Zoid gifted me, never found them
Don't know if I lost them in this manner or not or I lost them at home somwhere
Either way they were never found