#1 & Only rule Dont sit above or below people who are cheering for the other team.
Went to the Mariners game on saturday & ended up in the cheap seats up top & ended up sitting several rows above people cheering for the A's (even one gal that was sitting directly below us one row down) lol.
every times the A's came up they started cheering & the guys to our right & the group behind them got loud & saying SCOREBOARD lol. (to bad the M's last that night) of course the gal below us just cheered for the team while her guy friend cheered for the M's lol.
it was a fun game over all even though the M's lost that night lol.