teaching physics and chemistry

Crazy dangerous physics teachers:

Oh, come on. I'm liberal. I don't own a gun. I think guns ought to be regulated. The simplistic hysteria of people who want to hide the existence of guns from kids who already know all about them is embarrassing.

Spayed and neutered chemistry sets.

My chemistry teacher in high school put sodium metal into water, and I watched in awe as it caught fire, changing into sodium hydroxide and releasing hydrogen gas into the air. But of course, I haven't handled making anything explode, which is unfortunate. Very unfortunate. I would have loved to learn a little more about that.