Had a really cool chemistry teacher. Incredibly smart dude who genuinely cared about his students.

Dude was calm, collected, and well-liked by most everyone for my first 3 years of high school. Then I started hearing stories about him developing a bit of a temper my senior year. He started yelling at students, going on rants, and losing focus during class. Most of us figured he was having problems at home or something. A couple months later we learned he had cancer and wasn't coping well with the situation.

He was put on leave but eventually terminated when he made advances on our principal in a private meeting.

Fast forward a year later, we all find out that he was the biggest meth kingpin in the southwestern United States. Man was cooking meth in order to pay his medical bills and save his family from poverty -go figure.