Just Because You Don't Get It, Doesn't Mean It Isn't Funny

A few nights ago, Mitchell came running up to me, insisting he had something really funny to show me upstairs - a joke, as he called it.  I followed him upstairs, insisting that my eyes were closed until the proper moment of revelation.  He led me to my closet (I may have peeked a tad on the way there - I don't fully trust him with my eyes closed) and instructed me to open my eyes!  I looked around my closet, but didn't quite see the "joke."  I'll show you what I saw:

What, you don't see it either?  I smiled and asked him to show me what it was that was so funny and he directed my attention to the empty beer bottle he had placed on the shelf with a look on his face that said, "Are you kidding?  Can't you see the hilarious beer bottle I put there?"  He then started cracking up as if placing a beer bottle on the shelf in the closet is the funniest joke one could play.  He then called Ben in and he got it!  He saw that bottle immediately and started cracking up too!  "That's so funny, Mitchell!"  

Ok, I don't really get it, but in the end, it was pretty funny.  We don't get to laugh together in the closet very often.