One of the things I like most about subbing is the unusual days. The days when it's not just classes-as-usual (with the exception of assembly days). Sure, the students are a little harder to handle, but then again, I don't have to worry about making them do work or keeping them quiet.
Today was the Career Fair. A bunch of representatives from local colleges, trade schools, and other career choice paths (for example, the police, the military, and such) set up tables and give talks to show students what choices are out there for them after graduation.
My job was to take roll and then keep order while someone presented in the classroom. Since this guy was a really good speaker, I didn't actually have to keep order. The students were interested. And polite. So, I got to sit and listen as well.
And I get paid for this.