It's a strange feeling to see someone you looked up to as a kid, someone who made you seriously consider a path in life, now standing in stark of an opposition to your own.
Back then, I would have liked to have meet and hang out with him. Now, if I were to see him in a pub, I would just buy this guy a beer, and ask the staff to remain anonymous.
It's a strange feeling, to have your assumptions about another person shaken to it's core. Strange, but sobering feeling

