Something came up the other day in conversation about high-ish level club tennis (in europe) that really made me think. We've all been cheated on the tennis court and we all know people who cheat but one guy came out with the phrase "You're only cheating yourself if you're aren't calling balls out". I think he meant that in other words...on the baseline is out and its understood in the higher levels of club tennis that you should expect your close balls to be called out. This disturbed somewhat as I would consider myself someone who literally calls everything in on the basis that it would wreck my head if someone hooked me! However having thought a lot about what this guy said and from a lot of on-court experience I'm really starting to think that maybe I'm handicapping myself by being a "good caller"? What's more, when I think about it, most of the better players in my club are horrible people on court. Coincidence? So i'm just wondering if I missed this unwritten rule along the way or should i just treat tennis as a game of little consequence and enjoy it and continue to be fair? Interested to know if people here actually go out onto court intending to call close balls out.