Yes it is a bad thing... Unless your a little weener that cant win a fight unless they go crazy with adrenaline....

why do you think martial arts experts train themselves to be calm and collected during a fight... Its because when your calm and your adrenaline isnt fucking you round.. Then you can have better acuracy, better fighting stratigy and you will usually come out on top if you got ya technique down..

I mean.. Your adrenaline is gonna run through you anyway.. But the test is whether you let it take over or not..... And letting it take over isnt any good..

Especially if your comming at someone like me... Cause I'll put you on ya ass flat out in no time if you go crazy in a fight...