Max is an environmentalist, vegan and supporter of human and animal rights. In 2002, Max contributed to rescue efforts for Cincinnati Freedom, a cow that escaped from an Ohio slaughterhouse. The cow jumped over a six-foot fence while the slaughterhouse workers were on break and eluded capture for eleven days. Max donated $180,000 worth of his art to benefit the local Society for the Prevention of Cruelty to Animals, part of a chain of events that finally led to the cow being sent to Farm Sanctuary in Watkins Glen, New York, a permanent home where the cow remained for the rest of her life.