I always use the safe and have never had a problem, even when mother and I went out for the day and left the key in the safe door.... oops, came back and asked ma for the key, she says no you have it.. long story short had to go to reception who sent security up with the key which the room maid had handed in, he waited while we opened up and checked nothing missing then left. Did we give our maid a HUGE tip for that bit of kindness!
If I have too many things to put into the safe or things too big for the safe I just lock them into my handluggage bag. OK 'they' could still get in easily with a knife or steal my bag but so far so good. I think most thefts are small and quick/easy to get away with. I also wonder how many thefts are committed by other tourists? Just my thoughts on that matter.
Cheers Amandalou :-*