Here's what you do:
Swallow 50 tabs of Anadrol, go and wreck your car causing thousands worth of damage, have someone else bone your girl.....
If you still aint mad, get fired from your job, tirp over a cardboard box in public and so people laugh at you.
Then have the vagabond that lives in that cardboard box sue your ass for breaking and entering
Sell up all your personal belongings and possessions including your house to pay for the law suit.
Swallow 50 more A-Bombs.....
Now your suitably aggressive and

the minor behind the counter will shit his pants when he sees the look in your eye. Shit, tell him he'll only have to look at you the wrong way b4 you rip out his eyes and piss on his brain. When you say this, say it through clenched teeth and keep your voice low. Bearly above a whisper.
After you've de-stressed yourself by pumping up in the gym, on your way out, approach him, grab his collar and pull him close to you, so it's nose to nose. And tell him:
"There is one more thing" cue minor to gulp....
Slowly reach into your inside jacket pocket and pull out.... a black G-string. Hold it aloft between your thumb and forefinger for all to see. And tell him "Your woman forgot these last night!"
Watch him
Of course then you got the problem of no job, money, car or life. Alternatively you could write a formal letter to the manager requesting you speak in more detail at his convenience, otherwise you'll be providing your custom elsewhere. You watch him call you up in a New York minute!!
Whatever method u choose, be sure to let us know the outcome.