How to identify a math major

I recently received a lab report that was stapled in an interesting way.

Just in case you're having trouble seeing what happened here, the student first used a stapler designed for many pages (I think it's for over 45 pages, but I'm not sure) on a stack that was way too short.  He did this three times. Then, for good measure, he topped it off with a standard staple (after a misfire, first).
Needless to say, this student is a math major.

And, Happy Turkey Day to all our American readers.