I have, surprisingly, had only 2 that really stand out. One was a bank shop - I thought that I had stayed away from that particular branch for a long enough time but, not only did the banker recognize me, but instead of just doing his job he copped an attitude because he was offended that he was being shopped. Uncomfortable but, since it was part of the job, I followed through (and he forgot at least one thing due to his arrogance). The other one was a route of gas stations, 2 of 1 brand, 1 of the other, within a 3 mile stretch of a particular road. For context, except in very rare cases because I have done so many (literally thousands over the year), I rarely spend over 20 minutes on-site even for very large stations, so I'm moving very quickly. Some of it is so that I'm not in customers' way and some is so that I don't have to stand around waiting for a customer to finish at a pump. A customer rounded the corner of the pump and had to just take her foot off of the gas pedal while I was snapping the picture so no delay for her. She was so offended that I was "in her way" that she screamed at me for the remaining 10 minutes I was on the site and then, because I ignored her, waited for me to finish and drove down to my next station just to scream at me again. It was so odd I ended up laughing (which made her even madder).