Mr. Horton Still Scares Me

This really should have been a Top Ten list, and I can think of at least one more episode of Different Strokes (Kimberly and Arnold get kidnapped by a guy who tries to rape Kimberly) that should have made it.  But the even more glaring mistake is that the Arnold-Dudley with Mr. Horton the bicycle shop owner episode is not listed as #1.  That's easily the most disturbing episode I've ever seen of a television show, and I've watched multiple episodes of CSI: Miami.