Trix contains substances toxic to rabbits, hence why the kids keep taking it away from him
Of course, this just raises the question why they never bother to tell him this directly. If the rabbit - no, any rabbit - gets their hands on Trix, it will trigger The End of the World as We Know It effective immediately, comparable to the Pube Muppet getting his satisfaction.
In case you're wondering how the crap the very few times he actually does get the Trix don't trigger doomsday, it's because they're All Just a Dream or something, I dunno.- Jossed. Bugs Bunny got some didn’t he?
