Spent weeks cleaning up legacy code, because my phone was ringing non-stop about errors and crashes, got it done. The CEO has been on vacation for like a month and a half, so I had to make executive judgements, and has just now returned. I got called down to the CEO's office so that I could get bitched at for marginally changing the appearance and behavior of a part of the site. I explain that it was necessary, and the response I got was "it was working fine for five years". All I could say to that was "no it fucking wasn't, are we working at the same company?" When I go to take another job, I might just put all of the old code back in place to remind them of how much "better" things ran before I worked here. Massive headache now, physical and proverbial.