I'm so reminded of my freshman Chemistry class...dude was bad enough that I stopped going to lecture and watched my grade improve. Apparently what he taught and what ended up on the exams were sufficiently disjoint that reading the textbook and just showing up to recitation prepared me better.

(Unfortunately, as I found out when I showed up the last day of class so I could give him a scathing evaluation, at that time, tenured faculty were not even made to bother with student evaluations.)

Dav2.718