Today was the golf outing of one of my suppliers. Last year was exhausting but a lot of fun. This year there were some complications, and basically I wound up bowing out of the golf but still attending the prime rib dinner after the fact. Very good, and lots of door prizes.
Anyway without going into details, there was some miscommunication. He called me to let me know they were done with the golf portion, and I failed to read the (upon reflection) quite obviously implicit message. So I got all pissed off and lost my temper and hung up on him. I'd thought I had learned to control this a bit better and realize that things like this just aren't important enough to get upset about. Because without fail getting upset never helps and only makes me miserable, so it pointless - no, it's detrimental.
Apparently I still need to work on this. Instead of learning to control it, it's quite possible that I've just succeeded in not placing myself in these sort of situations.