The strip title is possibly a reference to the "blush response" that is part of the Voight-Kampff test for androids in the Philip K. Dick novel "Do Androids Dream of Electric Sheep?" (a.k.a. the movie Blade Runner).
-san = standard Japanese name suffix, shows politeness
sensei = teacher

Piro speaks:
Just for the heck of it, here's a link to the raw art (i dont normally put up raw art, but i was showing it to someone). It'll give you an idea of what the page's look like raw.
http://www.megatokyo.com/extra/raw/preview-930-pencils.gif
As for the earblade, i'm not saying. :) You'll find out at some point.