Oh, man, I'm sorry. I was a callcenter manager, in my youth (seriously, I was like 22). My very first night as manager I had to fire someone. A single mother who worked two or three jobs (she kept falling asleep on the clock). She cried. I felt like utter dogshit.  I got used to it after that--only had to do it a few times, but it helped that the later firings were mine, you know, I made the decision. This was just me getting handed a file and told, "She'll be in at midnight, so you'll need to tell her then." On my very first night in charge. Ugh. So yeah...even when they deserve it, it's not easy. I hope it went okay.