Especially not if it's your own poo. You might keep reinfecting yourself with some bacteria or parasites that would otherwise have a slim chance of staying in the body, but the human immune system is pretty well-equipped to handle that.
Having your own toilet in your own kitchen is probably more sanitary than separating toilet and kitchen, but sharing them among multiple people.
Having your own toilet in your own kitchen is probably more sanitary than separating toilet and kitchen, but sharing them among multiple people.