My junior researcher began to say "Lately, I feel loneliness. So, I'd like to domesticate something."
He : I've domesticated a cockroach. But, The cockroach died easily because I forgot feeding the cockroach with water.
I : How about domesticating a female member of that laboratory?
He : Then, I will have to feed her with a man everyday. Otherwise, she will die.
He : It would be best to domesticate a snake because I have to feed one only once a week.
If you are a small eater, you are qualified to be domesticated by him.