I ask you to stay after class because I notice that you've been struggling to focus. You seem distracted... I put my flats on the desk and dangle while we chat, and I notice quick that the problem is THE FEET! You've been daydreaming about your professor's ticklish feet rather than studying! I remove my flat and tickle my sole while it scrunches and flexes. I tease you with tickle talk "You wanna tickle feet? Tickly Feet! Tickle tickle tickle!" then deny "Nah ahah! You can't tickle feet! you need to control your urges! We'll do this every day after class to teach you how to focus!"