That'll Do Pig

"Animals of this kind delight in rolling in the mud. The tail is curled. and it has also been remarked, that those are a more acceptable offering to the gods, whose tail is turned to the right than those which have it turned to the left."

[Pliny the Elder, Natural History, VIII.77]

[Some nervous looking piggies that tempted the Emperor in the city of York, Sept 2017]