Opponent hits a drop shot and starts celebrating. I hustle and get the ball back to their surprise and point continues for a couple more strokes. We win the point and then I go ballistic at the umpire trying to explain the rule. The only reason I didn't stop the play was I knew no one in Vietnam adheres to that specific rule seeing players talking in the middle of the point. I would end up coming off as anal. Case in point was a match prior to ours where the server would yell "Pete Sampras!" as he was serving. I kid you not. Really weird but freaking hilarious. If you've ever played next to Vietnamese you'll see how much smack talk goes on during a match.