When Phoebe and Ross are getting mugged but it turns out to be one of of Phoebe's old friends it is clearly night time. But, when they go and tell Monica and the others that they had JUST been mugged, it is day time!

Editor's Note: Thank you so much for your submission. However, I had to do a lot of editing to make it readable, so please use proper grammar (capitalization, punctuation, etc...). Thanks again and keep the Slip-ups coming.