6. Monica - Cut Chandler's Toe Off (https://whatculture.com/tv/friends-the-worst-thing-each-friend-has-done?rf=homepage)

5. Chandler - Kissed Joey's Girlfriend (https://whatculture.com/tv/friends-the-worst-thing-each-friend-has-done?page=2)

4. Rachel - Nearly Ruined Ross' Wedding (https://whatculture.com/tv/friends-the-worst-thing-each-friend-has-done?page=3)

3. Joey - Took A Stuffed Toy From A Baby (https://whatculture.com/tv/friends-the-worst-thing-each-friend-has-done?page=4)

2. Phoebe - Tried To Cut Monica Out Of Her Life (https://whatculture.com/tv/friends-the-worst-thing-each-friend-has-done?page=5)

1. Ross - Didn't Annul His Marriage To Rachel (https://whatculture.com/tv/friends-the-worst-thing-each-friend-has-done?page=6)