"He's been on my bag for over 10 years"
 

"We?ve been through too much together for a long, long time. He?s been on my bag for over 10 years. He does what he does." Jim Furyk talking about his caddie regarding his extra club in the bag that cost him 4 strokes and a total of $131,250. Just had a little chuckle over "he's been on my bag", lol. Not the way I expect to hear a caddie referred to.