I was schooled for a short time in TaiChi, and while you can see it as a dance class, it also has some quite deadly moves, along with learning to move in a fluid, energy efficient way, to fall loosely, to sidestep an attack and capitalize on the other’s energy. I have never BH had the need to test it. It could be my stature and bearing just say “don’t mess with me.” When the common bitachon folks ask if I am armed ( say when entering a supermarket heavily dressed) I say “rak hayadayim adoni”.
I have also seen a guy promoting an ancient Teimani combat art based on the figures of the aleph bet. There is a famous picture of Abdullah senior flanked by some stern looking bearded bodygaurds. They are identified as Teimani Jewish warriors.