Stinky Skunk
For the skunk that appeared in The Sims: Unleashed, please see Henri LeStanc.
Skunks can come and wander around a Residential lot sometimes. A sim can either 'pet', 'watch', or 'chase off' the skunk. The first two options will get the sim sprayed by the skunk and make their hygiene meters go down. A skunk can also spray pets.