I have three younger brothers. They too attempt to eat each other if I don't feed them regularly.

The youngest is very snappy and possesses very sharp teeth (they need them in the jungle you know) Thankfully he's not venomous and usually he's kept in like with a stick.

The middle one is by far the most demanding in terms of food and I feed him primarily on red meat and fibrous vegetables. Being a mongrel I find him aggresive and it is best to keep him away from the others.

The eldest is the easiest to maintain, it's funny he almost thinks he's human, but again a stick is always at hand to keep him in line.