I remember that well. That whole business with the phony letter was inexcusable but that's a separate issue from what Mark Graison was doing. Mark didn't know about that scheme or have any part in it. Bobby and Pam were still married when Mark took Pam to France on his private plane! What did Bobby do about that when he saw Mark next? Nothing. When a man who isn't any physical threat to Bobby even says something to Pam, Bobby's throwing punches. Mark was trying to seduce Pam. More bluntly, Mark was trying to take Bobby's wife from him and all of the sudden Bobby's a pacifist? Remember, this is the same guy who told Jeff Faraday if he ever went near Pam again he'd kill him. It's interesting how protective of Pam Bobby could be when only confronted with a guy who was maybe 5 foot 7 and 140 pounds. As soon as it's a man roughly his physical equal, Bobby isn't a tough guy anymore is he? I think Bobby might have been able to handle Mark Graison too, but it wouldn't be easy and that's the difference maker here. Maybe Bobby would win a fight with Mark but he's still gotta do it!