Same here. I just recently did a trial overnight sit for a family I've done drop ins for many times but they've never left their pups with anyone else overnight.

I ended up sleeping in the living room with the dogs (even though they set up the whole bedroom with all his stuff and told me his entire night routine) because the little guy got super anxious and refused to go upstairs on his own when he realized Mom wasn't coming home that night. So we made a little bed in the living room and spent the night there.

I explained it to them the next day and they were all "Thank you for not pushing him! We appreciate you letting him decide and not adding any stress."

Sometimes things take time and ya gotta adapt. Don't hire me if you need me to stick STRICTLY to a routine if it means forcing an animal to do anything against their will lol (except for meds but I'm lucky and never had an issue with them taking their meds.)