I am unfamiliar with all types of head shaving, but there is one that should not be allowed.  The restriction is if your name is Shane Battier.  Maybe the heat in Houston is too much for him to have some cover for those desert ditches in his dome.

The futures for Houston have them at 2:1 to win the Southwest Division, and how I wish I had some friends from that town.  The Pythagorean Theorem