There is a list miles long of the official rules of sports and for fans attending sporting events, but there are also some unwritten rules that many baseball fans adhere to.
1. Never snatch from a child or their grandparent
If you are a fan and a player tosses up a baseball or other memorabilia to the crowd or you're both going for the ball at the same time, and you as a fully grown adult proceed to violently wrestle, punch, kick, and snatch said item out of grandma's clutches or the tiny clutches of a small child, expect to be booed, to end up as a meme, to have your address posted on the web for all to come and find you, to end up on the news, and to have security potentially force you to give the item back if the pressure from the fans didn't already shame you into doing it. YOU WILL NOT WIN. No one likes to see an adult elbow a grandpa in the face to get a t-shirt or to see a toddler crying so hard their face is red becuase you stole 'their' baseball. Don't do it!
2. Clapping for the fallen
This is often a point of confusion to some as to why fans clap when a member of a team, whether your own or the opposing, is injured. Fans will clap when he rises to be carted away after being injured or shakes it off and keeps playing. It's just a respect thing on both sides whether a fan or the players, to clap to say, we're glad you're okay or we hope you will be because at the end of the day no one wants to see anyone be horribly injured, or have a career ending injury. Also off the field, a lot of players from opposing teams are really good friends.
3. Give it back, give it back, all the way back
One of the greatest things you can do is catch a ball in the stands....for your own team that is, but to catch a home run ball from the opposing team is sacrilegious and must immediately be thrown back on the field in disgust. As funny as this is for fans, a lot of stadiums have begun to ban this practice. Boo!
4. Don't drop the beer
You do not under any circumstances drop the beer! It is a source of pride to see a person get pelted with a ball but somehow still manage to keep their beer upright and intact because as a baseball fan, beer is life baby!
5. Catch a ball with your beer, chug
It's become tradition that if a baseball lands in your beer, you must then chug that beer. Expect lots of fan appreciation and to make the highlight reel FOR SURE!
6. Don't cross the line, ya friggin' moron!
If you are going to attempt to catch a baseball you better make darn sure that you do not cross the line or partition between the field and what is acceptable for you to catch. You do not reach over and snatch a baseball from a player or attempt to get it out of his glove or wrestle him for it, you lune! You do that, and you will get kicked out for interrupting game play not to mention booed out of the stadium especially in hot ticket games.
7. Pay attention
People have been very badly injured for not paying attention. Literally balls are flying everywhere not to mention the occasional bat that slips from a players hands. So if you're texting your friend instead of watching the game even high up in the stands, you could potentially get a ball or bat to the head.
8. Take off your cap during the anthem
It's a sign of respect to remove your cap when the national anthem plays.