My father is a theoretical physicist.
Consequently, many of my embarrassing moments involve him overenthusiastically lecturing either my friends or me in the presence of my friends about something odd/we don't really care about.
Past lecture topics have included (and remember, some of these lectures were given to me and my friends when we were still in kindergarten):
*How properly holding one's golf club during miniature golfing will increase torque.
*How rainbows are really 360 degree circles.
*The patterns formed in a sandbox by the wind. Fascinating.
*Why the moon is higher in the sky in the winter than in the summer.
*How agitating a container filled to the brim with, say M&M's, will cause the broken bits to go to the bottom and create more space at the top of the container (really! This lecture I actually appreciated because my mother had to approve the amount of dessert I ate every night, so I'd shake my little cup of M&M's vigorously so it would appear that I took less than I actually did!)
*Why a frisbee will stabilize better when it is thrown at a higher velocity.
*How melted snow, oil, and salt form really neat patterns in the street.
*Why ice skating is not truly a frictionless activity.
*Why, due to the principles of particle dispersion, you don't really need to stir Crystal Light to mix it with water.
Oy gevalt! I love my dad dearly, but some days I wish he had a normal profession, like an insurance salesman.