I'm sitting here typing on DK and I start humming the tune to Jingle bombs by Achmed. Zoe is insatiable when it comes to her toys and brings one back and hears me humming. She gets into that freaky perfect sit thingy she does and is tilting her head, straightening it back, leaning her head close and speaking with her eyes. I stopped and she kinda dropped her head ever so slightly, so I started again and she seems enthralled. It definitely wasn't from having a beautiful hum, that's for sure! But it was funny. So I kept doing it, on and off when she was near and far and every time she seemed very interested. Any other doods into humming......Go ahead, I know you want to try it......