The FIRST thing I thought of when looking at his facial expression and overall demeanor was, "this is a man who knows the picture being taken of him will be uploaded onto an Internet forum in a day or 2 at which point he will be cracked on and ridiculed unmercifully"
It's pretty obvious he didn't want to take that photo.
I figured Melvin probably reeled him in for the picture with the old, "Come on Will, take a picture with me. I'm a huge fan and bought your book a while back, don't worry it's just a picture for the old photo album"...
As they snapped the pictured, he probably realized, "oh fuck, what have I done?".. It's like that moment when you pass gas and seconds later realize you've soiled your underwear, totally fucks up your day.
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