"the farm's insurance carrier can and will go after the parents' homeowner insurance"
Of course, I haven't read your or any other persons home insurance contract, but does the insurance you have which protects YOUR HOME against fire and tornado etc., also cover a house down the street if your kids torch it??
Its been a while since I read my homeowners insurance contract, but I'm pretty sure it doesn't say they will replace A DIFFERENT HOME if my kids burn it down?? It only protects MY HOME... (and may not even that if a family member intentionally torches it???)
Just asking as I'm always curious to learn something new... There's all sorts of different policies and different insurance products out there, maybe a homeowners policy covers a DIFFERENT HOME if your kids burn it, but it could be harder to get underwritten and more expensive JUST ASKING is all.