It goes without saying that your goal should always be to not get involved in any sort of a street fight. It’s best to just deescalate the situation by talking with the other side; or, if that fails, to excuse yourself and walk away.
However, you might find yourself in situations in which you just can’t find a way out from. In that case Jiu-Jitsu can save you but is it enough?
David Ortiz speaks to Rickson Gracie about the subject if BJJ is enough in a fight?