One of my pet peeves is my doubles partners standing 2-3 feet behind the service line when I am receiving serve, especially on the deuce side. I see no benefit from this whatsoever. The reasons given vary from wanting to protect against a lob to wanting to know where my return goes. Standing so far back opens up the middle, puts no pressure on the server, allows the server to dip a return at his feet and allows the server to hit the return to the receivers backhand. My second pet peeve is partners who refuse to move back after I hit a defensive lob, but that's another story. I can't win with these guys.