Sapmi,

When dealing with pricks like those guys you mentioned earlier the best course of action is to be non-reactive, they are seeking a reaction from you, if you give them a negative reaction i.e. being angry or by lowering yourself to their pitiful name calling antics you've lost. Instead show restraint.

Sometimes surrender is victory.

Read the following blog post from Cajun, an instructor with Lovesystems for a more detailed explanation of this;

Cajun's Spice: Advanced Body Language Part 2