Every wedding has some guests who don't know how to behave. For those of you who need a primer on this, these 10 behaviors are absolutely, positively, never acceptable:
1. Arriving obviously drunk to the ceremony is the wrong way to start out at a wedding. These are usually the same people who want to know why the bar isn't open before the service.
2. Wearing white, or ivory, or cream to a wedding is a no-no at all times unless it happens to be a "white wedding" and all guests have been asked to wear white attire. Otherwise, no guest should wear a predominantly white dress.
3. Asking for a second helping at a seated/plated dinner isn't appropriate. The guests have been paid for by the head, and the caterers are not required to provide second servings if it's not a buffet.
4. Ordering rounds of shots to the table during a formal wedding dinner is no-no. Treating a wedding reception like a fraternity bash is totally inappropriate. Save the shots for the bar.
5. Changing into casual clothing after the wedding ceremony is against all rules of etiquette unless the bride and groom have invited their guests to do so (which never ever happens).
See More: 5 Rules For Drinking At A Wedding
6. Drinking too much at the reception is in poor form. Nobody wants to see a passed-out wedding guest with their head down on a dinner table in the background of pictures.
7. Fighting with the DJ because you don't like the music the wedding couple has chosen is beyond rude. Sometimes the DJ will say he doesn't have the song you're requesting because it's actually on the bride and groom's "Do Not Play" list.
8. Creating drama with friends or former lovers is a total no-no and detracts from the solemn occasion of the ceremony and happy celebration at the reception. If you know that you can't behave yourself around some of the other guests, decline the invitation.
9. Treating the bartender, service staff or wedding planning team abusively isn't cool, even if you think it's really funny at the time. Who cares if you don't like the party? It's not about you — it's about the bride and groom.
10. Pitching a fit when the wedding ends is ridiculous. And approaching the planners, bartender, or DJ with your credit card out, trying to extend the party, is both tasteless and pointless. The party is over.
Owner of Weddings in Vieques, a destination-wedding planning company off the coast of Puerto Rico, Sandy Malone has helped countless couples plan their big day since 2007.