Reminds me of a great Dave Barry "Ask Mr. Language Person" column:
Q. When should I say "phenomena," and when should I say "phenomenon?"
A. "Phenomena" is what grammarians refer to as a "subcutaneous invective," which is a word used to describe skin disorders, as in "Bob has a weird phenomena on his neck shaped like Ted Koppel." Whereas "phenomenon" is used to describe a backup singer in the 1957 musical group "Duane Furlong and the Phenomenons."
"subcutaneous invective,"
Beautiful!!