I used to be scared to death of spiders.  [places tarantula in Spencer's hands]  Hold still now.  Yeah, I almost fainted once when a little garden spider crawled into my bedroom.  Yeah, I told my dad about it; you know what he did?  He bought me a tarantula just like Leo G there.  He knew I'd have to change my tarantula's water, and that meant sticking my hand in the terrarium.  If I didn't give him water, the tarantula would die.  My dad figured I couldn't let that happen, even to a spider.  He was right: I stuck my hand in that terrarium—oh, that first time.  Oh, man, I was so scared.  But you know what?  It got easier.  Pretty soon, I wasn't even scared anymore.  In fact, I go so into spiders, I started studying them, and I found science, and I became the world's greatest science teacher.  …  Point is, if you run away from the things you're scared of, it doesn't get any better.  The fear doesn't go away; in fact, it just gets worse.  Trust me.