Anyone for golf jokes?

I don't really golf, but have worked with many who do, and of all the golfing jokes I've heard, this (clean) one tickles me the most.
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Two very busy buddies who haven't had the chance to schedule a golf game game together for quite some time finally manage to arrange their schedules, so they meet at the golf course one fine Saturday.

One friend is admiring the others' new golf bag, when he notices that his friend has only brought one golf ball.

"Joe, are you that confident?", he teased.

"No." Joe replied. "Frank, this is the best thing I've ever owned, I only need the one ball!"

"What do you mean?" the incredulous Frank asked. "I don't understand how that's possible."

"Simple," said Joe, "I can't lose this ball! If it goes into the rough, it makes a beeping noise to tell you where it is. If it's in the shade, and it's too dark to see, it will glow and beep. If you hit it into the water, it will rise to the surface, come to the shore, and beep. You can't lose it!!!"

"Wow!" Frank was impressed. "Where did you get it?"

"Found it!!"