By the time the first game of the NFL season kicks off next week, more than 30 million Americans will have taken part in some type of fantasy football draft this year alone. That is how big the Fantasy Football League (FFL) has become in the United States.

Because of the popularity, draft parties have turned into mega events. Instead of just holding them in basements, groups are out there trying to outdo each other with the biggest and most lavish draft party they can come up with. Trips to Las Vegas, renting out theaters and stadium get togethers are all on the table when it comes to making it an epic party.

With the stakes raised, those hosting these gatherings want everything to be on point…including the guest list. When it comes to that roster, draft party hosts are often saddled with the additional task of making sure the right people are invited and that the party killers are not.

There are certain type of people who show up to draft parties and can suck the life out of the entire proceedings. Here is a list of people to keep away from any draft party if you want it to be a success.

1. The Novice: Everyone has to start somewhere when learning how to play fantasy football. Just don’t let it be your party, especially if you have an experienced group of team owners. While taking the money from the first timer is always fun, watching that individual take 20 minutes to draft a kicker in the second round is only funny for so long. If he or she is new to your group, have the newest addition provide written documentation confirming the necessary experience needed in the art of fantasy sports to keep up with the veterans.

2. The Way-too-serious Dude: This person is easy to spot. They will walk into your draft with a minimum of four fantasy football magazines, a laptop with their favorite fantasy websites already up, print outs of the five practice drafts they have taken part and their cell phone set to call the FFL hotline they use when ever they get into a drafting jam. Not only do they agonize over every one of their picks, they chastise you for drafting the wrong player.

3. The Jersey Chaser: He’s a football fan, but on a limited basis. This one only knows the superstars of the league and will draft strictly by the names on the back of the jerseys. Usually by the end of the second or third round, his knowledge has been exasperated.

4. The Socializer: This person has come to the party just to talk about anything OTHER than the draft. Work, taking their car to the mechanic, lawn care and the high cost of milk are all topics known to be brought up during conversation while driving the rest of the group crazy.

5. The Belligerent Drinker: Drinking alcohol at a fantasy draft gathering not out of the norm. For many, it’s a standard ritual. However, drinking so much that you get angry and pick a fight when someone else drafts your favorite player is slightly out of bounds. It can also make for an interesting team if you wind up choosing eight defenses because no one going to stop you.

6. Anyone who can’t get a baby sitter: Yes, it sounds terrible to say men and women with small children in tow shouldn’t be allowed at your draft gathering, but nothing sucks the soul out of a draft party like watching a someone attempt to change a diaper while drafting. That sort of thing can definitely put a damper on the occasion.

Every league has at least one or two of these types of people who show up each year. However, if you don’t recognize any of these in your group, you may just be one of them.