No or Ya?

Lately, when I ask Samson a question, I usually get ignored. I'll ask a few times and then finally say "Samson, yes or no". A few days ago Samson walked up to Seri while she was sitting in her glider and said "Sewi, do you want your moosic on?... Yes?... No?" (he stands and waits for an answer, and a loss of control nod or shake of her head will do! But when he gets neither....) "Sewi! Do you want moosic on?! No or Ya!!?" Finally, she has a head wabble, and Samson says "Oooo-kay! I tuwn it ooon!"