I'm so sorry you had that experience I too have had a similar problem when I was on a crisis hotline. Yes people can have bad days at work; but this is different. Someone calling these hotlines are at the lowest point possible, and all he/she wants is a calm, comforting, non-judgmental voice at the other end.

I know it's not a phone service, but may I recommend 7 Cups of Tea as a chat service if you feel really down but not suicidal? Please take care and hope you find a way through this