From the Latin
Tom Cepel writes: I went to a job fair at my alma mater. A lady at registration gave me this name tag. I told her I couldn’t wear it because there’s only one of me.
I really don’t have a problem with ignorance in most circumstances. That the average Joe doesn’t know that a male graduate is an alumnus, and that two or more are alumni (pronounced a-LUM-nee) doesn’t bother me in the least.
On the other hand, someone whose job it is to print nametags and needs the proper form of the word has no excuse for not looking it up and getting it right.