Maybe it’s a cultural thing . Funny enough the last customer that did this to me was Indian / Middle Eastern. She followed us around not picking and asking us to do more every time we thought we were done . She was polite but annoying. My blood was actually boiling by the time I left because it was already very fairly priced. I did have an old customer that would walk the entire lawn after every mowing before he paid me. That def rubbed me the wrong way.