Yesterday, at my Mom's Cormac asked me "why am I the only deaf person in our family?" He has never asked before and I could tell he wasn't upset. Just curious.. So, I told him "Daddy and I both have a very special gene (I told him about genes and he seemed to get we are made up of them. )and when we both gave them to him and he was born deaf."
More at http://thelawrencetriplets.blogspot.com/2011/11/why-am-i-deaf.html