Product reccomendation

Occasionally I go to bars and when I am pursuing women, guys will try to mess with you, either subtly or blatantly. I want to get something that will allow me to either ward off people or if they get abbrasive, stop them from going to far

I am most concerned with the sociopath /narcissistic types, since they are most likely to get violent

I also want to learn with people in other environments (like sports teams or work) where people try to mess with you