I think one of the greatest pet peeves of a livestock farmer is tank heaters that don't work. Nothing is more annoying than arriving to check or feed livestock and finding a frozen stock tank and a worthless piece of crap tank heater that randomly stopped working for no reason. It never fails to happen at the most inopportune times as well.
The sheep have experienced their first, second, and third snowfalls. They don't seem to mind being coated with "powdered sugar". I keep telling them it's not a big deal. I think I'm coaching myself, not them.