Bathtub Funny

Matt was giving the boys a bath a couple of nights ago. They have the foam ABC letters that stick up on the wall of the tub. Matt was spelling words for them: home, heart, house, noah, logan, etc. The next word he spelled was BONE and told them it said "bone." The next thing you know, Noah slaps the 'R' at the end and says, "What does that spell dad?!?"