18-1 is a ridiculous score but would you rather have them play keep away, after they got up 5-0? I wouldn't, maybe switch the line up a little bit, but having a team give up is more of a slap in the face. "hey were so much better, lets just keep the ball away from them" how about you do that, I two foot your ankle across the park. If numbers were an issue, good for the guys who showed up to take the drubbing, but good for the other team for not being dicks and making the other team feel like idiots. Giving up and keep away is a classless display IMO.
Agreed Cascade,
To add to the sportsmanship debate the best place to start is to curb some of the garbage that's running out of players mouths these days.