the second paragraph down is my email. . . for some reason the italic tag closed early...
Keep on doing what you are doing.
You absolutely never know who in that class is really listening & starting to think.
Most undergrads are lemmings and afraid to really think and act for themselves.
Someday, some one (probably more that one!) will actually say that you started them to think and finally they started down that path and found the truth.
It's happened to me with three different people, whom I never thought were listening to me during the 90's, when I warned that our country is at great risk due to the neglect fo the Clintonites.
I was totally floored by one 50 year old Boston Liberal Democrat, Jew, ex-school teacher, Clinton voter, who is now so right wing, she scares me!
So keep it up....you are doing good!