[ Vader ignored the students that were grumbling; it just gave him more of an excuse to retaliate or fail out the more annoying ones. He stalked around the collected students, his heavy footsteps near impossible to hear. ]

Abandon your human senses. They will serve you no longer. Your new senses will serve to warn you of potential dangers.

[ There was the swish of something moving very fast, followed by a pained yelp. ]