When Ross married Emily and said, "I Ross take thee, Rachel," straight to Emily's face at the altar, fans everywhere were shocked. I mean, who does that?! It turns out, however, the mistake may have actually been more understandable than it appeared.

According to one "Friends" writer, the infamous moment was actually inspired by something that happened in real life on the "Friends" set. The writer explained in an interview posted on Instagram, "There was one time, at a taping, where David Schwimmer walked in the room. What he was supposed to say was, 'I have the cab waiting downstairs, Emily.'" However, Schwimmer accidentally called her Rachel (via The Sun).

The writers suddenly realized that this would make a great joke in the wedding scene. Maybe it's easier to get confused about who you're dating than we initially realized!