The "lips that touch dog pee shall never touch mine" ethic is common among non-dog owners, but dog people treat dog hair as a condiment, and are exposed to dog...essence...with every canine kiss, nuzzle and sneeze.

But I understand. Men exhibit all kinds of odd behavior in the sincere belief that it will improve their chances of success with the fairer sex. Pitching a perfectly serviceable hydration bladder is in no way more reprehensible than growing a goatee, wearing a polyester leisure suit, or driving a miata, all widely acknowledged chick magnets.