My coworker used to side message people in our meetings to try and get them to laugh. He got me so good one time I had to turn off my video/mic. One time one of the network engineers started laughing in a meeting and his manager who was running the meeting asked what was so funny, his response "the chats" which got everyone else to burst out laughing because we all knew exactly who was messaging him. I can't condone this stuff, but it's a rare instance when it's just so funny to see it happen.
We do this to each other occasionally. I cannot lie.
We do this too. I love Teams, with one exception:
When you're on a broader call, like a presentation, and it ends and everyone feels the need to Teams out "Thank you!", so I get 45 message saying "Thank you!" that I do not need popping up on the screen.
I gave a training the other week and I specifically said at the end "I hope you enjoyed this, I hope you got something out of it, but even if you didn't, I want to leave you with one gentle request: DO NOT ALL OF YOU RUN OFF AND PUT THANK YOU IN THE TEAMS CHAT!" Everyone laughed. One person still sent a "Thank you" in the Teams chat (not 100% sure if they were serious or busting my balls).