One was enough, Bill. I love philosophy, but I don't love the atmosphere that simmers around a university philosophy classroom. Accordingly, after that I read philosophy books rather than taking philosophy courses.

My feeling is that the average person's natural tendency to become a pontificating, opinionated, self-obsessed prat increases exponentially with every additional philosophy course taken and passed.

I'm sure there are individual exceptions to that, though. ;-) Like you, for example.