The Boxer Club

This is why I love my college (sometimes): boys in boxers (and nothing else) running around campus and singing Christmas songs. Nothing wrong with seeing some half-naked men singing (and shivering) while wooing all the girls' dorms/floors on campus, is there?
The boxer club and their annual "boxer caroling" might be my favorite group on campus, followed shortly by the viking club which wears boxers and viking hats and runs around raiding dorms and wreaking havoc.
Thought: Why on a Christian college campus are the men so eager to get nearly naked?