IME, use a small trap for a skunk.
If you can prevent it from lifting its tail, it wont spray.
Trust me . . . .
They even make a spray-proof trap that I finally ordered, its basically a length of 6" pipe with 1 blocked end and a trapdoor at the other.
Before I got this trap, I would cover my wire trap with heavy duty cardboard and duct tape the seems, then cover that with plastic sheeting and duct tape.
Only the trapdoor end and the mechanism and handle were on the outside.
It kinda worked, but even if you dont get sprayed directly, just being close to it makes it soak into you and your clothes.
Did you know that the best bait for a skunk is the "perfume" from another skunk . . . ?
http://www.amazon.com/BRAND-NOT-SPECIFIED-ADC6-Spray/dp/B0033HQDLW
I believe a place called jtanimalcontrol makes it.
Its worth every penny of that $60 . . .
I also need to tell you that skunks are the #1 animal to be worried about having rabies, DO NOT LET IT GO KILL IT.
A trapped skunk can be drowned but I prefer a shotgun to the head, its way easier on the skunk AND me, and for those who know, the spray is an actual liquid, so when mixed with water now you have gallons of skunky water soaking into your ground, much better to just get the final squirt.
If you have to shoot it from a distance, theres not much you can do to prevent the spray, but be comforted in the fact that it will be the skunks last spray.
Also, I might add that its amazing the size hole a skunk will fit into, they always go for the same spot here(cause it already smells like skunk) and the gap they fit into is less than 3 inches wide.
I guess I could fill the gap, but this happens at my work and I get $25 per skunk, so it gets quite lucrative around this time of year, and the property backs up to a creek, so theres always access for them.
I have already made $150 since Feb, last year my total was $525.