I am not much of a trapper but I keep a box trap busy getting rid of problem coons. I have tried to catch foxes, but have only had one of them that was foolish enough to get caught. Box traps work very well for coons and feral cats. I tried leg hold traps which work better for foxes, but found that neighbors' dogs like to step in them too.
My biggest worry about box traps other than theft is what to do if a skunk gets caught. How do you get them out without a problem?