How much is enough?

For those who knows me can probably tell you that I am an extremely tolerating person. I amuse myself with the amount of crap I am willing to put up wit

How much is enough though? I guess it really depends on the subject and the target. I mean, certain people/event are more tolerable than others.

Toleration is an act to forgive and to forget, I say for the most part, i can do the forgiving part quite well, but not the forgetting.

Though, like a cold, my level of toleration decreases as the repetition of an event accelerates in its frequency. When it reaches bottleneck, I will snap. And whe I do, it will be nasty.....

At work I have been dealing with an extremely difficult person, and this person, did cause me to snap. Its not so much his character or personality that is difficult, but his behavior is not considered acceptable:

1. He will talk you down at all time. Its almost a constant behavior that he need to tell you that "You Suck". In psychology, this behavior usually comes from someone with extreme low self esteem, who knows that he can't really show anything off, since he will have difficulties justifying any claim. Instead, he would put you down in hopes that it will make himself look better
2. He is an extreme brown noser, he would sign up to any activities that a senior management staff is participating, in hope for some facetime to present himself
3. He back stab other staff. This is a funny behavior, you see this a lot in TV, some character (usually the extremely ugly one) would always be by the boss side, telling the boss story to ensure specific individual would get into trouble. Trust me, this happen in reality, this person exhibit the exact same behavior. Whether he is ugly or not, its subjective...
4. He victimize himself by telling another person that "I think I am overperforming over any of you, but our boss is bias, so I will never get the recogniztion"
5. He would fake his work status to tell people that he is doing great, while in the back he is getting massive complaints from people he work with.
6. He is a bloody cheap bastard. There were countless occassion where he would suggest "Lets go for a coffee/beer, my treat". And, conviently, he would have "forgotten" his wallet when its time to pay

After putting up with such behavior for almost six months now (and if you consider the time since I've known this person, it will be well over 15 years). I finally snapped. And it wasn't because he did any of these things to me, but he did it to another staff, another good friend of mine (Heinrich). Some of the more incident will be walking up to Heinrich and tell him that "I am the best comparing to you and everyone else", and another incident where he went to tell the boss to give Hank crap.

I recently have the opportunity to formally review some of his work, and I discovered a lot of problems in his project. Nice, perfect opportunity for me to back stab you now. I did exactly what he would do, I ran to the boss. It was then revealed to me (by my boss) that, his work is far from being satisfactory. He fudge up his work result, his work were half done, he was in trouble with other people in his project. Bottom line is, he is a complete failure in his job

I guess what they said in the psychology books were true, when people fail at what they do, they need to induce other events to distract people from noticing his failure.

Now I wish I get to work with this person for the rest of my life, this way, at least I will always know that there is at least one person that is performing worse than me