Sent his professor an e-mail in which he told her that she is an unfair and terrible teacher. michael would never have said those things to the professor in a face-to-face interaction. this is an example of:

How interactions online and offline may lead to different presentations of the self. Various investigations have shown that we show online various facets of the self, which few or never show offline. This is because sometimes we want to show the best of ourselves or do things we do not dare to do offline.

I hope this information can help you.