I once almost got a colleague in trouble because I was slagging off a client to him in his dms while he was in a meeting with his camera on. Luckily wasn't screensharing.

He could read the little notifications and was trying hard to not laugh but people started noticing.
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RT @chinesegon
told my coworker i was getting day drunk through slack and that little notification popped up while he was presenting to management. it’s so over
https://twitter.com/chinesegon/status/1648400278935470080