Lucky Luke - Volume 82 - Rin Tin Can's Ark

Arriving in Cattle Gulch, Lucky Luke runs into an unexpected scene: an
apparent crackpot called Ovid Byrde is about to get lynched. The man’s
revolutionary opinions – animal welfare and the sanctity of life – aren’t
particularly well-received in this town full of ranchers and cowboys! After
Luke intervenes, though, the locals simply ignore Byrde … until he suddenly
finds gold, and a pack of unscrupulous bandits take advantage of the poor
idealist to establish a vegetarian dictatorship!