I am new to the business and have a customer that is more than difficult. I am a day and half into the job and I know there is nothing I can do to that she won't complain about or express disatisfaction, or change her mind on. There is only a half day of work or so left, but I am really considering just up leaving the job as is and collect no money for a lot of quality work that has been completed. This sounds crazy, but she's not worth the headache. I have no written contract, just an estimate - other than leaving money on the table, is there anything I should worry about? I am not worried about getting a bad name as I have since learned that this woman has a reputation in the neighborhood for being ridiculous. Any insights are appreciated.