Sambasiva Rao once overheard Bhagavan telling someone: If you must get angry, get angry with good people. For if you get angry with bad people, you may get it back with interest.
He asked Bhagavan whether there was really no danger in abusing good people.
Bhagavan replied smiling: "When good people are abused, they may not retaliate. However, they are hurt, and so the abuser may have to suffer. There is also a saying that he who curses good people, gets all the bad that may still be left in them. If you want to curse at all, curse Bhagavan. He will not be hurt and he is without sin. You are safe in cursing Him.
"He wants only to be remembered. The mood in which you remember Him is of less importance. Were it otherwise, how could Ravana and Sishupala get salvation?" (p91)