I was actually thinking about that the other day!
I wonder if his friends/family find things (be it on the Border or otherwise) and are like..."Hey Glenn...check it out..you've still got it! look at all these ladies fawning over you!"
I doubt he finds/looks for stuff like that on his own, but someone has had to have informed him that the Heat is still ON
also I love how this has turned into a Glenn thread haha...all roads lead to Glenn