Me: I want you to keep your bandage on so your finger doesn't get sick.
J: What?!? My finger can't get sick, it doesn't have a mouth.
Me: But germs can enter through your cut and make your finger sick.
J: Huh?!? That doesn't make any sense.
I still haven't figured out how to explain to a 3 year old how a bandage protects cuts from getting infected.
Luckily this one didn't get "sick" :)