Looking for the scene a quote is from

I’m trying to find the scene where Shirley says something like “You taught me why white peoples put bumper stickers on their cars.” I think she says it to either Britta or Annie because one of them might be leaving Greendale. I quote it a lot, and the internet just shows me actual bumper stickers no matter what I search lol

Update:

So apparently I hallucinated an episode and have been lying to people for years lol. I went online and searched through all the scripts but couldn’t find the line. I’m between shows right now, so I’m gonna watch Community again and see if I’m misremembering a line. Thanks guys!