You should do it. I used to coach. I boxed for 10 years. It's a great workout and works great as a self defense .

Agree, nothing like a stiff upper cut to the chin to get a guy's attention and respect, followed by a cross to the nose and he is putty. Only did it once at a keg party to a load mouth 6'5" jackarse. Lasted 4 seconds. He never gave me shat again and we actually became rather good friends. One fight every ten years and your respect preceeds you.