Ruxpin - we're not talking about pacman vs a heavyweight, we're talknig about pacman Vs you.
Pacman - world class professional fighter, one of the best in the world P4P, someone who fights for a living VS you - an average pod.
A few years ago Zab judah - former 140 pound champion, about 5'6 tall, knocked out a bouncer with 1 punch and cracked his eye socket. A similar thing would happen if you fought a professional fighter of any size, you'd get knocked out with 1 punch.
Please tell me you don't really believe you stand a chance against a pro boxer. I know a fair few people in the industry in the US even though I am in Europe, if you tell me your location I'll find out the nearest boxing gym to you that has pros training there. I could set up just some sparring between you and a novice pro lightweight, someone nowhere near pacman's level, then you'll finally understand the difference between an average man and someone who fights for a level and has trained to fight at a professional level.