I would consider most SAR/Military uses to be legitimate uses of a Busse-tough blade. Hacking through car doors, prying doors open, cutting through walls... pretty standard stuff for these knives <img src="/ubbthreads/images/graemlins/thumbup.gif" alt="" />
Pardon my ignorance, but what is "SAR"? Also, is that the reason for some of the Busse model names (SAR4, SAR5)?