I think anyone practicing a martial art who is interested in "practical application" should be very careful about what they do in a real world situation, especially since a lot of RVF members like to travel to 3rd world shitholes where life is cheap.
My personal opinion is that 99.9% of fights/assaults are avoidable. As for bar or club or sports match related fights, that's just retarded. Fighting in a controlled setting against a trained opponent is probably fun though, and is on my list of things to do.
In terms of being robbed in the 3rd world, it is very very rare that someone would try to stab or shoot you if you comply.
They might slap you around a bit, but that's it. Chances are, they are high on crack or meth, and jittery, so don't look away but don't look them in the eye either. So what if you lose a camera or a few bucks? Carry a decoy wallet with expired IDs and a small amount of money, etc.
Really the only thing that would cause me to resist would be if I was traveling with a female and they were going to rape her...I would put my life on the line for that. In fact that's one of the reasons I never traveled with a girlfriend in central and south america.
I broke my own rules once when I was being robbed, and fought back, and it almost cost me my life.
In general, when you bring force into the equation, anything could happen. You could be the toughest, most badass MMA master on the planet, and be kicking the shit out of a couple of Peruvian street kids who tried to rob you, but that won't do you any good when a 3rd one you never saw comes up from behind and stabs you in the back to rescue his friends. And then you die a slow agonizing death over a twenty dollar hat and some pocket change. This happened to the hundred kilo, body builder and judo instructor who was the uncle of a Peruvian friend.