mommy is that heaven?

Yesterday while driving David sees a graveyard and says mommy what school is that. I said (without thinking, which would later prove to be a problem), that's not a school that's a graveyard. Oh what's a graveyard mommy? Me (still not thinking), that's where dead people are buried. Oh, ok, he says - then that's heaven. Oh my - how did I go so wrong, LOL. So then I have to explain the whole body, spirit, soul, etc. etc., which appeared to promptly go in one ear and out the other. So I guess at our house - graveyards are heaven for a little while.