When a co-worker got angry with me it was due to a emotional misunderstanding and a payment not distributed in full. I was financially shorthanded at essentially sixty bucks. I just let the person know that their was error and my colleague blew up. I remained calm, I didn't take it personal I heard them out and actively supported their opinion by listening. We found out it was simply a mix up with dates and asked each other not to be angry with one another and if one was offended that wasn't the intention.