How was Prophet Muhammad (PBUH) when he was angry? Anger can be a virtue if it occurs when the rights of God or of people are transgressed. 

The anger of the Prophet ﷺ was rare, but if you were to witness it, you’d know something was truly wrong.

He (pbuh) was never angry over worldly things.  He (pbuh) never became nasty when he was angry. This is the way of the Prophets (as).