Pascal-sensei is a series that I picked up on a whim, kept thinking I would watch one more and then drop, but then never did. I'm still here 8 episodes in and will probably stick it out. What happened?
Basically, this is a comedy sketch show with a bottom-of-the-barrel premise: new teacher Pascal is weird and not smart, yet surprisingly capable. Over-the-top school hijinx ensue. The character designs are tedious, the OP does a good job of irritating me, and there's minimal continuity leading to a lot of forgettable one-off jokes. So the expectations are low. But then it usually over-delivers in its execution with a great twist ending, so I'm left thinking, "Well, that was actually pretty good. Guess I'll watch the next one."
I can't recommend this show to everyone, but it might work for you if you like your humor silly and guns-blazing.