I never had a significant problem with the city-born kids from the local university who wanted to enjoy a year of rural living as part of finishing their education.
But I had previously owned rentals in the city and had a few real horror stores there. 1) Tenant calls, says Do Something! He found a drunk who puked and passed out in the back seat of his car when he went out to drive to work. We learned a supremely ugly woman who had moved in without my permission to share with a tenant, had been corresponding with a felon in prison who after release came to see her and turned out to be the drunk in the car. 2) Do Something! Call Child Protective Services! Lady went tweaker after she lost her job, told me she had stripped bare the little bush outside her door for switches to teach her 3 year old proper manners. CPS took the kid, and I think she was already in their system. There's more, but here's a cute one: Young kid from the boonies came to the city to go to A/C tech school. He disappeared, I assume he flunked out. After no rent paid and neighbors said he was gone, I went in and found the place spotless and found he had done a flawless repaint of the entire apartment - I assume as a well-intentioned apology for being unable to pay the rent.
So when I rented out the ranch's granny cabin to assure someone was here at all times, I prepared for the what-if possibilities. Hence that chain. But I never had anything happen here more serious than guests parking blocking my access, etc, just normal tenant stuff. I finally ran out of patience when the last tenant moved in then soon informed me she had come to the country to live in solitude to write the Separatist Lesbian Manifesto, and didn't want me to be visible to her. She hadn't expected I would be around, and seeing me upset her. Sorry Lady. I don't care about your politics but I'm not going to change anything to make you happy. We had gotten along fine with the 3 previous single women who had rented, not going to change anything for this nut. She lasted a year, an uncomfortable year. Ok, enough!