I've been a bridesmaid over 125 times. Here are 7 of the biggest fights I've seen break out at weddings.

• I've been in over 125 weddings as a professional bridesmaid, and I've seen it all.
• Wedding parties don't always get along, and I even saw a fired maid of honor try to crash a party.

Over the past seven years, I've attended hundreds of strangers' weddings as a hired bridesmaid.

Through my company, Bridesmaid for Hire, I've witnessed people's most joyous moments, but I've also seen things that still haunt me.

Read on for some of the biggest fights I've seen break out at weddings.

My first hired gig featured an ex-maid of honor showdown

The first time I was hired, the bride warned me that her ex-maid of honor (who she fired a month before the wedding) might show up and left me to deal with her.

I had to stop her in the parking lot (the valet texted me a heads up) and negotiate with her to leave.

I was ultimately successful, but she ended up throwing rocks at the venue's front door and got into a screaming match with the valet.

Wedding crashers and open bars don't mix well

Wedding crashers are real, especially at venues that have sections open to the public (like golf courses or hotels).

At one wedding, an uninvited drunk person took full advantage of the open bar, started screaming in people's faces, and tried to dance with women.

This sparked a giant fight where three people started to push the wedding crasher until security guards had to step in and remove him.

Wedding crashers can't always be avoided, but you can ask the venue to block off your area with either a security guard or physical barriers.

It can be hard to blend families, but it shouldn't include fistfights

I worked one wedding where both sets of parents couldn't stand each other. They were kept on opposite ends of the venue.

The fathers ended up in the bathroom at the same time, and words were exchanged that ended in punches. Both of them returned with bruised eyes.

It's best to keep a constant buffer between guests who don't get along.

Nothing's more awkward than a fight between the bride and groom

One of the most shocking fights I've seen happened right before it was time for the couple to walk down the aisle.

They started screaming at each other so loudly that all their guests could hear.

Seconds later, the ceremony started, they read their vows, kissed, and got married.

Wedding-vendor beef can get in the way of your big day

At one wedding, the videographer and photographer didn't like each other and kept fighting.

The couple noticed and calmly asked them to pull it together. But that made tensions rise more until the photographer knocked the videographer out.

He got so hurt he had to go home.

Make sure to vet your vendors' personalities alongside their services. Better yet, find vendors who've already worked well together.

Wedding guests can get rowdy by the end of the night

Fights between wedding guests can start over many things, but they often include a few too many trips to the bar.

The worst fight I witnessed happened when two guests from the bride's side got into a brawl with two guests from the groom's side. The fight landed two people in an ambulance to the hospital.

Having one or two trusted guests watching for these fights can help break them up as quickly as possible.

Bridal parties don't always get along

Sometimes bridal parties mesh flawlessly. But I once saw two bridesmaids physically fight each other at a reception.

One tore the other's dress, and it ended with a lot of tears.

If you have bridesmaids who don't get along, try to at least get them to agree to leave their drama at home.