I killed and skinned one around 3 or so weeks ago. I don't think it sprayed but it was pretty ripe. I skinned it from a fence post and carried it in a plastic trash bag to keep some of the smell out of my garage. I often use a pressure washer to flesh and that is what really helped.I tan my own stuff and the degreasing agent I use doubles as a cleaner. After that, and neutralizing it after the pickle in a baking soda solution, it didn't smell at all. I hear if you make a hydrogen peroxide and baking soda solution, that works pretty good if you just wanna put the fur up. I'd watch the peroxide though- unless you want an orange skunk.
I've never called one. I just shoot them on occasion when I'm out if I see them. Don't forget to wear gloves. They are notorious carriers of rabies.