I have several indoor only cats. I will be trying to germinate CPs here in the near future. I never thought much about any seedlings until I realized my indoor cats can be as problematic as the outdoor ferals/strays. If these plants are toxic, I am going to have to grow them all in a room that I can shut off from the cats such as a spare bedroom. If they aren't toxic, I can germinate them in old bird cages and such to keep the cats away from them without worrying about any plant material growing out through an enclosure that they might ingest.