And this one.

My little brother has informed me of a grave mistake on this poster... They're shaking with left hands!

Dr. Steel is just a rebel

So what if the kid is left handed?

is proper to shake with you right for some reason... left handed people will take over the world someday

Mistake, schmistake. Ever shook hands with someone whose right arm was in a sling?

Boy scouts shake with our lefts. It represents lowering your shield to brethren. Very important.