Yeah, you're right. I recall my instructor asking some interesting questions of me when I was getting my flight instruction, both before and after flights and also during. He usually asked questions regarding flight characteristics during actual flight, then before or after, he would hit me with some pretty good ones.

He often walked up, looked things over, then if all was ok, would pick up the transmitter and start things going (meaning have me do the prep and starting procedure). If things did not go well, he would simply walk away and allow me to figure it out for myself. If I had trouble with it, he would come over and offer some hints always allowing me to think for myself. I learned a lot that way, so I use that with my students too.

Works every time!!

DS.