I recently took up the game after 10 years off. I noticed that I have resumed with old habits which contributed to a losing match record and subsequent quiting. They are: 1. Not split stepping during opponent's serve to avoid distracting him with my movement and noise. 2. Immediately calling anything within 2 inches of any line in. 3. Letting my opponent warm up as long as he wants; keeping my warm up brief to be nice. 4. Not attempting winners so as not to embarrass my opponent. 5. Deliberately extending points so my opponent gets to play more tennis in the match. 6. Always providing the balls. 7. Not picking on my opponent's weakness (usually backhand) so as not to embarrass him. A lot of this translates into my personal and professional lives, where I don't assert myself enough. I've taken tennis again so I can develop the confidence that will shed me of my "nice guy" habits on and off the court. But so far...I'm doing all the same passive things again. Is this truly excessive sportsmanship, or are some of these habits how the game should be played?