That time when you are taking about personal projects with other developers and their past frustrations come into the project discussion all of the sudden. Like, I just wanted to communicate about this great idea I got with other developers, not about how it cannot be done, or how someone else thinks I cannot get it done. I can stand this happening the first 1000 times, but not the next 10000 times.
I feel that this happens to other people as well, but there is just no talk about it anywhere.