How offensive. Everyone knows the possessive 's' requires an apostrophe!
Really, at this point just go the extra inch and add the 's.
Most people forget squirrels were once the size of dinosaurs.
Just add an apostrophe s after everything. Why? Because the lord himself told me to!
"Really bored while driving from S. Carolina to CT in the rain."
"The real S, N, Double O, P, D, O, Double G."