Cringiest thing you've witnessed at a wedding?

[Fourtwenty]

We were secretly sent the lyrics to the first dance and as a surprise we all had to stand up and sing it to the couple.

My toes were curling

[Sara2000]

The wedding where the bride tore open the cards with the wedding present cash in to pay the DJ. This was the same wedding where the bride and groom had not paid for the cars, so half way through the reception two burley drivers escorted the grooms father to the cash machine. They also landed the bill for the flowers and the hotel for the wedding night on to the brides mother. I could go on......