People definitely have the right to not let people borrow their sticks. Just don't be expected to return the favor if they need it.
I'm also gonna state some obvious things but I still see it being done at my local tournaments/gatherings.
NEVER walk in front of a TV being used during tournament. That's just out right careless and disrespectful.
Since most of our tournaments are run on PS3, we have pad users in our midst so if you're using a Sixaxis/Dualshock 3, turn off your controller after you are done playing your match. I hate when they don't because it sometimes can interrupt a tournament match and then you have to hunt them down, tell them to turn it off, restart the match (shit sucks if it's tournament) and the pad user who fucked them up acts inconvenienced that they have to go over to shut off their controller.
If every setup is being used, it's normal to call ups/next. DO NOT call ups on multiple setups simultaneously. Wait your turn to play. DO NOT call ups only to walk away to take a phone call or use the restroom then complain that someone took your spot. You left? Back of the line.
Also, random courtesy while playing casuals: if you must take a phone call during your match, let your opponent know and let the next person play. Don't expect to get your spot back if you mid-match. They will not wait for you if there is a line. Don't complain that you lost because of stupid shit. Stupid shit happened because you let it happen. Blame yourself and take it as a lesson to improve your game. No one likes a bitch who cries like a scrub. So finish your set before you get off the setup if you have no life pressing matters to attend to. If you lost your set or are finished playing, you may leave the set up so the next person may play. If there is line of people waiting to play, DO NOT run it back. You can do that at house gatherings with close friends or at a setup with absolutely no line, not at a house gathering with people you're only acquainted with or casuals at a venue.
Tournament courtesy: If we have only so many setups and there's a tournament to be run with a decent or large turnout, please refrain from playing casuals until the very end of the bracket (ie. losers finals/winners finals/grand finals) or after the tournament. If you are playing casuals at a setup that needs to be used for a tournament and we ask you to stop playing so a tournament match can be played so the tournament can finish faster, be a good sport and stop your match. There will always be time for casuals after the tournament. Don't bitch and moan about it. The faster the tournament is finished, the faster we can get back to casuals and the longer all of us can play. Don't make idle talk with players playing a tournament match. Let them play their match. The only thing they should be able to hear are the spectators, the game, and/or the music from their music player of choice. Don't talk to them unless they asked to be talked to.