I was responsible for presenting some student awards today. It was a small thing, and I tried to do a good job, but it wasn't as perfect as it might have been.
A retired prof was there for officialdom reasons, and let me know that I did a lousy job.
Yes, I just met this person, and she needed to criticize my awards-giving. I know I'm not the best at such things, but after a long and busy week, I really, really did not need some person I've just met to come up and criticize me.
And the week isn't over.
(We've had this big activities week here; my students were responsible for nine activities, which meant I went to all of their stuff. And I went to other stuff, and I participated in another thing. I think it went well. Some of the stuff my students did was beyond cool.)