hey, I'm with you LD1... I understand what you are saying. There is a difference between asking for a little extra and demanding more trying to imply that you are ripping her off. Luckily I haven't had any experiences like this. In fact, just the opposite. I had a neighbor (2-minute tractor drive from my house) ask me to mow 2 pastures that totaled a little over 2 acres. It was very tall grass- like 8 feet in some spots. He was close and a neighbor, so I told him $100. He was okay with that and when I finished he asked if I could mow the ditches outside the fence and how much would I want. Probably took me about 20 minutes and I told him not to worry about it, but when he wrote the check he gave me $115 and insisted on paying more because he asked more than the original deal.
He actually called me back again this year. He has moved out and is starting to rent out the property. I quoted higher this time because the field was in terrible shape, and since he was renting it out I figured he wanted it to look presentable so I offered to trim around the fences and he agreed. Well... me being a little **** decided just trimming wasn't enough and I ended up chainsawing a bunch of "weed" trees that had grown up along the outside of the fence. I ended up hauling it all away and filled 6 truck/trailer loads back to my place to burn. Looking back now, I way under charged him. I think I totaled about 14 hours on this job, but it was close and I spread it out over almost a whole week (the hauling away and burning was a lot of it).