Just wondering if any of you have a cat like my Leo, who is obsessed with licking any plastic bag he can get to - he's the only one of our 4 who does it, but my mom's cat Belle also does it.

Does anyone know the root of this strange behavior? He doesn't seem to suffer any adverse health effects - when we give the other 3 treats, he doesn't eat them, but he certainly jumps at the chance to lick plastic - like that's a treat!