Caption This: Cam Johnson Isn't Quite Sure What Patrick Willis, NaVorro Bowman & Trent Baalke Are Laughing About

We won't have our normal Caption This on Friday, so I figured I'd jump in with one on an otherwise slow Tuesday. This won't be an every day type of post at this point, but if I spot a solid picture, I'll get it together for some captioning. There was little doubt that this was one such picture.

The picture was taken last Wednesday as the team was wrapping up practice for the day. Baalke is seen enjoying a laugh with his two stud inside linebackers. As I look at this picture, my first thought is Patrick Willis said something funny, drawing laughs from NaVorro Bowman and GM Trent Baalke. It isn't laughing about a big tackle since OTAs do not allow live contact.

My random favorite part of this picture is the look from a player I think is OLB Cam Johnson. I'm not positive, but that looks like Cam Jonson in this picture. Maybe he heard the punchline and doesn't get it, but doesn't dare question the humor of Patrick Willis.

What has Bowman and Baalke laughing so hard, and why is Cam Johnson looking a little sketched out?