Here I am in graduate school working on my masters, taking Ancient Hebrew, 20 years after I started my first day of kindergarten, and still the power of positive reinforcement via stickers of happy faces and "nice job" spur me on... no, more than that, they demand of me to achieve superior competency so that I may possess them. I am hoping that if I keep doing this well that I might get a scratch-n-sniff sticker. Could I be so blessed? But in all seriousness, it's still fun to get them even now. My friend Joel at Harvard Law would be so lucky as to receive stickers for his A's! Perhaps he does?