I've done a couple of short tours recently in Southern Ontario. One around Paris, the second near Port Hope.
I stealth camp using a Hennessy hammock so I am suspended less than a metre from the ground. Both times I was awoken around 4:00 in the morning by the smell of skunk. To our European, African and Australiasian members, a skunk is a small mammal, black in colour with a white stripe up the centre of its body. It is quite timid but is capable of projecting a musky smelling fluid which is quite offensive. You can smell the skunk if you are within close proximity. They usually only spray when challenged.
The question to my North American members is this:
Is there anyway of making your camp site less attractive to skunks? If one is nearby what are the best practises?