Zoo and death

Conversation with Peter...
"How do we get to the zoo?" Peter says.
"We are going to drive". I say.
"But how are we going to get there?"
"We are going to drive".
"We can't drive. How are going to go there?"
"I have already answered that. We are going to drive.".
"I am riding my bike"
"Well, feel free but since you don't even ride a bike yet, I am guessing you won't go far".
"mommy. don't say that"

Conversation with Lily...
"When are we going to Miss Nancy's?" Lily says.
"Well, not for a while, remember I told you that Mr. Toad just passed away".
"But why can't we go there".
"well, b/c when people die that you love, you are sad and certainly don't want to entertain guests".
"we aren't guests"
"we are guests when we visit other people"
"oh. So when can we go?"
HMMMMM.....clearly not fully understanding death yet!