
Credibility can destroy someone. If you are identified as not being "credible", or as such: believable, you will ultimately lose alliances; both friends and family.
The first thing to know about destroying someone is that unless you have good reason to, you should not maintain an aura of anger around you. Calm and collected at all times.
If you find yourself being asked if you are angry, it's not necessarily because you may "look angry", but more or less because they cannot read you. If they ask "why are you angry?", that's because you are being obvious. Never let parties with a vested interest into your personal demons know
how you feel. At any given notice these people can switch sides or relay information that can be to your ultimate social destruction.
This rule applies to both school and the work force. A good idea is to maintain two camps of friends. Make friends with some serious introverts, and keep the extroverts close. Don't buddy-up with everyone, but just the identified "key players". Whether you may like them or not, you should always respect they are identified as their personalities and should be treated as so. Study their behaviors, and at best, limit doing anything remotely similar. This way you just blend in with every other face in the crowd. The reason this is good, is because years down the road should you graduate or switch jobs (depending which applies), if you do the something remotely evil from time to time, you are not remembered by that action, but rather people draw a real blank about you other than "the guy who knew some guy, saw him, didn't know him all that well"; however, if you know
nobody in any given situation, you fit the MO of a crazed mass murderer, so once again, avoid staying too distant. You always want the chatty person(s) to gossip all the great things about you because they are usually clueless anyhow. You might have nothing nice to say about this person, but don't bother ever telling them. They'll get extremely offended, but then, probably forget anyhow as they are clueless.
How does this relate to destroying an enemy? This is how to create that stigma you are just a normal guy, no problems, no real anything. A blank sheet of paper. Nobody notices the blank sheet in the envelope. Try it out, mail a letter with a sheet with the words "
FUCK YOU" in big bold letters on it, and a blank sheet in front or behind it. People pay more attention to the "offending" phrase rather than the other question... "why would someone mail a blank sheet with this?". Quite personally, I'd write "
YOU TOO" and mail it back, but that would indulge the enemy into thinking I was pompous. Do nothing, they'll believe they totally offended you. Slash their tires, they won't do it again.