What not to do?

1. Don't scold/harass them
2. Don't criticize
3. Don't get into arguments
4. Even if they misbehave, just be humble & leave the place
5. Don't be impatient

How to handle tough people or oppositions?

1. When you find the person is tough, don't waste time in talking to him
2. Leave the place
3. Give pocket prasadam
4. Be humble & patient
5. Pray to guru & Krishna