I met Wil Wheaton a couple years ago. We were both at an event. I didn't go out of my way to meet him, it just happened because some folks in my group were interested in saying hello. He was an asshole. Spent the whole time insulting everyone around him. It was super awkward. The folks I were with were all in agreement he was a total douchebag. When we were at the same event the following year everyone in the same group just avoided him.