Our house only has the private bathrooms inside of each guest room, so this isn't an issue for us, but a couple of related issues seem worth exploring.
Last week, we had a couple and their friend book spontaneously after seeing them at the nearby gas station with maps, guide books, etc. spread out on the hood of their rental car looking bewildered. Being the helpful and outgoing types we are, I asked them if they needed help finding something.
They were on a roadtrip and hadn't booked anything in advance and needed a place to stay for the next three nights. Seemed nice enough and our place offered exactly what they were looking for.
We didn't have any other guests for that three days, so it was a nice little boost, or so we thought.
We generally leave all of our vacant rooms open to allow air to move through and so the curious won't have to ask to look at the rest of the house for future reference.
Well, the problems began with the bouncing ball of "we probably won't want breakfast most of the mornings because we're avid hikers and want to get out there at the crack of dawn."
It was like pulling teeth every night getting them to decide if they'd want breakfast or not. With their desire for pre-dawn coffee each day, if other guests had been here, it would have been a nightmare with these three traipsing through the whole house regularly really early.
After just one of my wife's now legendary breakfasts, we kind of knew we'd have them for breakfast each day, which is of course the point of staying at a B&B.
The biggest problem was these three were all huge drinkers by even my own liberal consumption standard. I mean, at least 12 beers per day per the two males and 1.5 or more bottles of wine for the woman.
After their check out, we started cleaning their room and while cleaning the full house noticed that every stinkin' bathroom in the house had been used.
And the guys weren't the best aims if you know what I mean.
So here we are, getting up earlier than normal to cater to their schedule, doing extra cleaning, worrying each night one of them would trip and fall in a drunken stupor, and they got a discount like most guests have since the economy tanked.
No thank you comment in the book, no "sorry for sullying more of the house than we were paying for", no tip, nothing.
Then the other day, some couple drives in and says "We'd like to tour your place, somebody we know stayed here once and we'd like a brochure for next year's visit to the area." When asked, "Oh, who may we thank for telling you about us?" they went blank.
So, after about 20 seconds of the tour, the woman beelines it for one of the rooms and we're thinking she just wants to take a look around. Five minutes later, out she comes and once they're gone, we see she has left us a nice present in the room's toilet. No, "Hey, I really had to go and sorry for leaving you a mess"
This locked rooms idea seems to be a very good one, if this kind of stuff keeps up..