Isn't this illegal?

I've been passing this sign every day for a week, and finally had to take a picture. I know Dwarf Tossing (and its nasty descendent, Dwarf Bowling) were all the rage a while back, before it was outlawed, but apparently Strasburg did not get the word:
I have not seen any Little People out here in Strasburg, so I can only assume that the sign means they are being used as the pigskin.