My guests let my indoor/outdoor cat into their side of the house before leaving for the day. She was separated from her food and water for 6 hours and showed her displeasure by pooping in 3 places (including on their bed. She doesn't mince words!)
They initially denied letting her in, so I reviewed the security camera and sure enough - they had the front door open for 3 mins during which time she wandered in and out, then finally in. One of the guests watched her go up the stairs, they discussed what shoes to wear, and then left.
They were very apologetic, and we had a warm-fuzzy conversation later, so all left the situation happy. I'd suppose I'd have them back since I can't imagine they'd do the same thing again. At the same time it's perhaps symptomatic of general lack of care/attention (they also left a stained blanket) so not sure how much of a heads up I owe to other hosts. If the cat had a say, she definitely wouldn't host again 😉
What advice would you all give?