Plus, we've all seen foul balls deflected after hitting a few upstretched bare hands. I really don't want to be in the path of a hard hit ball after it was deflected by a guy two rows in front of me, but if I am in the path I definitely want a glove. IMO, if you're reasonably facile with a glove and you are sitting along the foul lines, I see nothing wrong or embarrassing at all in bringing it. You are decreasing the risk to you and those around/behind you who might not be paying enough attention, or do not want to deal with a foul ball coming their way.