Yes, yes, and yes! Well some of them anyway. I have had the same experience as you a few times. My mother was a dental nurse so I make her come with me now (and I'm 39yrs old lol) whenever I get some work done. We have a silent language that we use. I look at her when the dentist tells me what I apparently need done and my mother will either communicate "no" by frowning her eyebrows, or wink for a "yes".