One of my favorite episodes was the one in which Homer grew hair. That was a very unique episode, since there was a gay secretary, but that wasn't even the issue of the show-the issue was Homer's image changing because he had hair.
“And I realized, when I'd come in to the meetings with these corrugated metal and chain link stuff, and people would just look at me like I'd just landed from Mars. But I couldn't do anything else. That was my response to the people and the time.”