@Steve3460 You might have dodged a bullet there. People whose first impulse is to abandon the whole trip when things don't go quite as expected....well, let's just say they're not the most seasoned travelers, and relaxing is not in their skill set. It's an act of mercy when they leave quickly without dirtying up your house, rather than stay on and demand refunds later (which is ridiculously common).
As @Kate867 suggests, there are tactics you can use to buy time when guests are simply overwhelmed by a temporary problem. It's great to have a small arsenal of vouchers for times when you need a few hours to get a solution sorted out - tickets to a nearby attraction, admission to a spa, meals at a nice nearby restaurant, etc - as these can go a lot further in calming people down than refunds. But if the guests seem truly inconsolable from the get-go, you know their real problem goes much deeper than anything to do with the accommodation, so it's best to encourage them to vacate immediately.