I too have been picked out to be picked on at work- LOL, but once my supervisor saw that I had my lesson plans together, showed up for work every day and assumed my share of the responsibilities, he eased off. It feels so good to be on top of your game. As someone once said:
"By doing your best, the habits of misusing your word, taking things PERSONALLY, and making assumptions will become weaker and less frequent with time. - DON Miquel Ruiz