Mark of Fridays: Shower Hair

When Mark draws people, they almost always have lines going straight up from the tops of their heads.  He calls this "shower hair."  Pretty much everyone he draws has shower hair.  The picture on the right might explain why.

As a side note, we're working to come up with a new name for "Mark of Fridays."  Doesn't seem fitting now that Mark has a sister.  We're open to suggestions.