We've all been there. You're at a concert singing and dancing along to the music pouring out from the stage. Then the person beside you goes crazy. Inevitably, it begins to ruin your night. Yesterday, while watching the beautiful Ellie Goulding perform on stage, my friends and I had the misfortune of standing next to a group with all of these qualities.

1. The obnoxious drunk

There's always one person who dances around on the verge of being completely wasted. They completely oblivious that they're about to spill their beer and trample you.

2. The guy who screams, "Donald Trump 2016!!!" during every break

They'll scream anything and everything completely unrelated to the concert you're attending. My blood can't help but boil when they do this, especially when they scream about Donald Trump (Drumpf).

3. The couple who won't stop making out

It's always a joy when you find you're third wheeling to complete random strangers.

4. The person who dances by flailing their limbs too much

This is a problem especially when you're in a mosh pit, and if you're small (like me). The person in front of you loves to dance, but it seems like they can't dance without almost punching you in the face every time they move.

5. The tall person you can't see over

Nothing is more annoying than realizing that you can't see the stage because of the person in front of you, and there's nothing you can do about it.

When you like going to concerts, you need to know who to avoid.