Exceptional Jewish Identification

Photo is courtesy of "GodzillaRockit" who published it on Flickr with the caption:

Some guy on the bus had a Star of David shaved into his head.

Many guys on the bus have tattoos on their body; many guys on the bus have a Kippa (Jewish cap) on their head, but it seems that this is the only guy on any bus that have the Star of David shaved into his head.