[ No, not nearly as bad as Tucker, but his experiments did cause an accident that killed his wife and it would've killed his daughter if he didn't make a pact with an evil world destroying alien to have her possessed. ]

An escalator school is one where a student can attend from elementary school all the way up to university. Usually, students have to take exams to be admitted into higher education, but at an escalator school, once you're in, you don't have to take those kinds of entrance exams. It's a great privilege, but you have to really think carefully if you want to stay in the same school all your life.

[ Ah, it looks like she's got most of the gunk off of Al's hands. ]

Oh, I'm almost done.