On Monday, Hashtag Roundup asked people to share things you absolutely should not do at weddings.

Here's what some people said. Take note, y'all:
1.
Don't get engaged! Proposing to your girlfriend at someone else's wedding is just selfish. Let the couple have their special day for crying out loud! #WhatNotToDoDuringAWedding
2.
Compare this wedding to all her previous weddings. #WhatNotToDoDuringAWedding
3.
Out do the bride #WhatNotToDoDuringAWedding
4.
#WhatNotToDoDuringAWedding Take out your phone and watch a baseball game.
5.
#WhatNotToDoDuringAWedding invite all your ex's to sit on the front row
6.
Crash it #WhatNotToDoDuringAWedding
7.
Write your name on someone else’s gift to save money #WhatNotToDoDuringAWedding
8.
#WhatNotToDoDuringAWedding loudly comment about how you and the bride hooked up before she was with the groom.
9.
#WhatNotToDoDuringAWedding Flirt with the groom.
10.
#WhatNotToDoDuringAWedding Mysteriously have your plus one show up who happens to be the Bride's ex boyfriend.
11.
Get blackout drunk, apparently #WhatNotToDoDuringAWedding
12.
#WhatNotToDoDuringAWedding piss off the wedding singer
13.
#WhatNotToDoDuringAWedding Act tired or bored
14.
#WhatNotToDoDuringAWedding live tweet it
There you have it! Behave, guys!
