I didn't realize until reading the description that the teacher takes on a different persona when his eyes blink. I like the idea, but perhaps it could have been better revealed with the animation/ sound that he 'transforms' into somebody else.
As a side note, the audio a little low at times. You might want to try to boost it up a little in the future.
I am interested to see the next part(s) - I want to see what happens to Mr. Sanders going forward.