Right now at my job, at the local sports centre, me and another guy are painting an entire gymnasium. It's oh so boring, mainly because it's very repetitive and it just takes such a god damn long time! We've been painting for 4 days now (8 hours a day), and we won't be finished for at least another week or maybe even longer. Luckily the guy I'm working with is one of my friends, so we joke around, which we have to to not become insane. I'll be a very happy panda once the job's done.

Anyway, what's the most repetitive job you've ever had?