I'm familiar with complaining to the administration and scathing evaluations -- but another pet peeve of mine -- these are often only for future classes, they don't really help the first kid. And unfortunately, a college freshman in a rigorous major doesn't have the luxury of time.

When my son was in high school, he was consistently humiliated by a teacher. When I complained "using channels," the response was, "We've had several complaints, why don't you make a formal complaint because numbers count." I really hate that idea (and politicians use it a lot) to act on the NUMBER of complaints rather than doing what's right.