Students get terrible teacher fired by doing exactly what he says: 'He was fired later that day...'

It sometimes happens in life that there's a discrepancy between your own abilities and what you imagine them to be. This overestimation can have wildly different repercussions, but sometimes, it just earns you a role in management. See, that unearned confidence seems to translate really well in interviews with people who have no idea that you don't know what you're talking about, meaning that the false bravado can land you a job you were never really cut out for. (Cue managers everywhere looking nervously around themselves.) 

Still, sometimes, you might be aware of your shortcomings and try to overcompensate for them, practically demanding that people see you in the way that you want to be seen, leaving those with lording over exchanging awkward glances as they try to avoid coming into the line of fire while your ego reaches a critical mass and threatens to collapse in on itself.

There especially seems to be a type within high school teachers who used to teach university courses and can't quite let go of the fact that they're no longer doing so. I'm sure we've all had a teacher or a boss who was a bit like this, and we probably did everything we could to stay the heck out of their way. These students took a different approach, steering into it and complying with the teacher's demands until they got fired.