For it's a fool who plays it cool by making his world a little colder

Some people just leave me with a bad taste in my mouth.

To them, I'd like to say, I pity you. I pity you for what you have become. I pity you for all the bitterness you carry with you. I pity you for the arrogance you need to deal with the bitterness.
For your sake, I hope there is no such thing as karma. For your sake, I hope what goes around doesn't come around.
Because if it does, then you're in for quite a beating.