Reading all these stories about bad managers and stuff, do managers and employees take things personal in the US?
So if you leave for a better deal you actually will make personal problems between employer end employee?
Whenever someone under me quits for a better deal or another job that I can't match I tell them "good luck and thanks for the time you shared with us, if you change your mind, welcome back".
Same with salary negotiations, I usually ask them to give me "ammunition" that I can use against the higher-ups to get them raises, that is job offers at other companies, lists of stuff they have done and statements from other departments. Usually I manage to get them 5-10% raise but sometimes even more.
People work so much better if they are happy about their situation from what I can tell.