Arsenic and old babies

Peanut: I’m eating the apple and the seeds.
Me: I wouldn’t eat the seeds if I were you, P.
P: Why?
M: Because they concentrate arsenic, a yucky chemical that can hurt your body. Eating one seed won’t matter, but don’t try to eat them, please.
P: Why?
M: Not good for your body.
P: [pause] Maybe we could name the baby Arsenic.
M: It’s a nice word, isn’t it?
P: Yeah. Can we name the baby that?
M: Probably not, P, because I want to name the baby something nice, not something that will hurt people.
P: Why?
M: Well, when the baby is little, we don’t want people to worry that it might hurt them, and when its big we don’t want people to worry that it might hurt them. Arsenic can hurt you, so nice word but not a great name.
P: Can we name the baby Hitting?
M: That’s a little more direct than arsenic, but no.
P: Why?
M: Nice names, not hurting names.
P: Maybe we could name the baby Pretend Hitting.
M: Maybe.