pfff, you dont need weapons to intimidate someone.
i still remember this one time very vividly when i was in my mates vk wagon driving around town and this moron almost changed lanes ontop of us...we were right friggen next to him!
so my mate gets all pissed off and honks the horn as you do...then the bloke slams on his brakes and cuts in infront of us stopping two lanes of traffic.
the other bloke jumps out of his car and as he's coming around it my mate jumps out of the vk with me in tow.
my mate completely goes psycho (in a funny way - if you knew him you'd laugh because you'd know hes just being funny taking the piss out of the bloke)...and he starts ranting on - "c'mon motherf*****, lets go im not afraid to bleed!!!" etc... and he then proceeds to slam his head against the vk's bonnet, fully headbutting it! "lets go! ill knock myself out, i dont give a f**k...im f**cking crazy!!" ...still headbutting the vk and hitting himself in the chest (al-la king kong, lol).
anyway, this other bloke ends up gettin scared off, calls us a few names and whatnot then jumps back into his car and speeds off...it was classic funny stuff....my mate even wanted to chase him down to scare him more, but i talked him out of it - knowing my mate he'd try to run him off the road as a joke.