Even at lvl 50 you can fail fairly often. Failing = a new floor trap & a little hp damage. However, if you stay in the same spot, you don't have to disable the floor trap. I've found it better to just stay put, as the reswpawn rate is faster than I can get to the other safe and open it. A final tip is to use a stethoscope on the safes. You'll have a greater success rate with one. (Purchased right there in the Den.) Tau