Along with a hammer, I've used mine as a chisel before. No tip breakage, no chipping. The edge was dulled, only needed minor sharpening.
The only thing I'm worried about is wearing of the stop pin. However, even if it is completely dented from impact to the blade or flick opening, you can switch it with the remaining two spacer pins (they are exactly the same). This means the knife will probably last for many many years, and the only fix necessary is that I will require new spacers.