In the last 50 years, i've had two that I can think of. The last being my step son's partner, who was responsible for all signage for the company.
After many meetings for 18" x 24" site signs for their building company and finally choosing the design and colors, upon the completed signage, he did not like the way they looked and wanted repeated changes. Signs delivered, he brought them back and said you could not read them, making more changes he came to pick them up, I placed the signs out in the yard and had him look at them from many different angles and from many distances, after his approval he left with the signs, returning hours later with all the signs and one destroyed from ripping off a tree, His reply was you can not read them from a distance! My reply was from what town, distance and from how fast? He was so belligerent that I told him to leave the signs and get the f%ck off my property! And never call me again as I don't need to deal with anal individuals!
Needless to say there was absoutely no problem with my stepson and a year or so later their parntenship came to an end.
It's your business and if you feel that the customer is a pain in the a$$, belligerent, offending, anal and or any other reason that you can think of, don't hesitate to ask them to leave or to have a sexual affair with themselves.