Acutally, there was only one friendly stewardess. She is the reason I didn't give a bad note. Also, anyone working for United at the San Fransisco Airport should be fired! They are useless! I lost a bag, probably in the plane or the bathroom or store I went to when getting off, but they didn't contact anyone to find my bag and wouldn't let me back in for security ...why not have security go with me? I would have taken 2 minutes vs 3 hours being pushed around from one person to another without result (who knows where my bag ended up...) On ground personnel at SFO not friendly and other peoples complained while I was in line!