It's not easy socializing with former employers, especially when things did not end on a good note. Sometimes, you feel you can transcend any previous tension, but the reality is that it is not easy for those old wounds to heal. Here, we have a former employer who pushed this Redditor to quit on the spot by pointing out every little flaw and mistake at work, even when they were entirely unnecessary. Now, years later, the original poster (OP) was asked by his ex-boss if he could join OP's Dungeo…