The worst dev I ever worked with was overly negative, complained about everything, was indirect and passive aggressive, and was dramatic over the smallest thing

The worst dev I ever worked with was overly negative, complained about everything, was indirect and passive aggressive, and was dramatic over the smallest things. Specifically they would know what an issue was and who was responsible before the fact, yet would cry afterwards and exaggerate the effect. Some examples: Talking about issues they had seen to a dev that they knew was responsible in a "This isn't good, how did this get here and from whom" type manner, even though they already knew who and what was responsible. Digging through newly broken tests, determining that they were the result of update payload configs not being changed in the tests, and then proclaiming "Now all tests are untrustworthy and thus useless". Waiting until after features/architectural decisions were implemented to point out flaws and provide solutions "If only we had used X this wouldn't have happened." Acting as if the product either was in a precarious position or that the users/BA's/PO's were clueless and cause it to fail soon.