I just saw this beautiful video on the BBC website and wondered what other funny/memorable 'oops' moments were out there from special occasions...
https://www.bbc.co.uk/news/videos/cje0lqeznnko
At my siblings wedding my niece was a flower girl. She did it beautifully in the rehearsal but when it was the real moment she turned around and walked back out telling us 'It's the wrong room! This one has loads of people in it!' <3