Mark Holoboski
If you don't study and apply yourself, you wont pass. Simple, but its the truth. That said, I took Marks course at GWC (where the entire CHEM course is run by Prof Shimazu) and Mark did a fantastic job. Hes a genuinely funny and nice guy. Extremely intelligent. You have to learn his teaching style. If you try, he will def help you. Cool dude.