How can you become a vigilante?

Answer 1

first, get yourself some bulletproof vest or something. and no capes. you'll look like an idiot. get a lot of black clothing and get a pair of biker gloves. next, get a long wooden towel rod and cover it in electrical tape. finally... don't talk. people wont reconcile you on the street. if you cant fight then your screwed.

Answer 2

Legally, no. At least not in the United States.