There is a customer that I've had for over 3 years. I did some mowing, trimmed hedges and bushes, installed borders, mulch, sod, and maintained her gardens. She was worth $5000.00 to me just last year. Always paid on time, tipped and generally never complained. Well, till last October. I did a leaf cleanup for her, at her request. I left the bill. Later that evening I get a call from her and she was irate about the amount of the bill. I told her that this was the price we agreed on. She said, "Let me think about it. I don't think I'm going to pay it." and hung up. (again). I'm sitting there trying to figure out what in the heck just happened. A couple of minutes later she calls back and apologizes for the last conversation and stated she would be glad to pay the bill. I received a check in the mail and it had a $30.00 tip attached and a note, again apologizing. My thought was, mystery problem solved. And I was paid with a tip. When I sent out my flyers and my renewal letters, of course I included her. Today I get a call from her and she sounded very sheepish. She asked if I had forgiven her for her behaviour. To tell the truth, I barely remember the incident. She said she had lots of work for me but was afraid to call me till she got my flyer. She explained that the doctor had her on some pretty strong painkillers and that she wasn't herself that day. I just let her go on and decided I'd take her back. I don't know. Maybe we judge people as PITA to easily.