Tinted Windows?  Really! What if what he’s hiding has NOTHING to do with fishing?  What if he really is a better fisherman that everyone else, but there is something else horrible and nefarious going on?  Oh, the mind races…

And look at the concerned look on Mark’s face.  It appears that he is starting to realize that something strange is afoot!  But then again, fisher-people are known for their secrecy… and the BS that issues forth from their being.  Anything to hide their secrets and what it takes to catch the most and the biggest fish.  But still it would appear that Mark is now sufficiently aroused to go into action!