Back in November, pro golfer Matt Kuchar won the Mayakoba Golf Classic in Mexico, which earned him $1.3 million. It’s customary for golfers on tour to give their caddies a 10-percent cut of their tournament winnings, which means that Kuchar’s caddie, David Ortiz, should have earned $130,000 for his week of work. But Ortiz only got a measly $5,000, and Kuchar doesn’t seem to think he did anything wrong. Ortiz is a club caddie in Mexico, and was picked by Kuchar to serve as a replacement when his regular caddie was unable to make the trip. After stewing over his paltry payment for a couple of months, Ortiz sent an email to Kuchar’s agent in January asking to be paid $50,000. He was instead offered an additional payment of $15,000, which prompted Ortiz to tell Golf.com that Kuchar …