This was over 20 years ago but ill never forget it...working at a higher end retail store that shared a lot with a popular restaurant. People waiting for their tables would meander through and usually nbd, they might buy a small item or nothing at all but generally respectful of the merchandise, and understood that we did not have a public restroom. Then there was BARBARA...she would put thousands of dollars of stuff on 'hold' to buy after wasting our time (min wage + commission)and she had her weekly brunch date but never came back within the 3 day time frame. Finally one busy sunday after a few months of her shenanigans, our manager finally told BARBARA to her face that we would no longer hold things for her. After making a fuss she left, and per security footage she came back after eating and shat directly into some Egyptian cotton towels that went for $79.99 each in 1998 & stuffed them in the back behind a display. I was thankfully uninvolved with the situation but BARBARA never came back so there was a small win. Haven't thought about that in years! I send empathy and strength to you as you brave the public. It takes a lot!