Anyone of them can. For the simple reason there are punk tough guy assholes out there who hvae a shitty attitude to begin with and think for some reason that when they're on that they are indestructable. From my experience I'd say 90%+ of these guys have a Staten Island mailing adress.
Tren is the only steroid that ever really gave me any kind of agression, and it wasn't even so much agression, it was a noticable added "kick" in intensity when hitting the weights, even while cutting. I used it my last two cycles and I can feel the difference without it on my current one. But it's all good. I'm responsible for pushing myself, not what's on the inside of the bottle.