A peaceful pond bottom is disrupted by one golf ball. Make that two golf balls. Actually, make that three golf balls. Ugh. Make that three golf balls and a golf club. United Airlines says you can earn miles by spending money on the sport you, um, love. So, earn 160 miles for your lost golf balls and 3,000 on your new clubs so you can keep traveling to play the pastime you claim to love with its MileagePlus Golf program.