I think my favorite may have been the crazy lady who kept telling us that none of the clock radios "spoke to her".

She kept insisting that we set them to KFUO (the local classical station) where they were playing a long Vivaldi piece.

finally I told her that none of them "spoke to her" because it was an instrumental piece. She did not like my semantic observation at all.

another lady yelled at me because I could not tell her why her remote works in my store, but not in her home.

she said I gave terrible customer service. I suppose I should probably not have laughed immediately following this pronouncement, but I did.

well, cantankerous old women are fun when you're not required to give them good customer service