#20: An Unfortunate Spill
Accidents happen, and if the girl in this story had a good sense of humor, she might have found the situation amusing. Nonetheless, no one wants to show up at their date's door with a suspicious stain on their pants. Hopefully, Patrick was charming enough to make up for the mishap.
While it's not the ideal way to start a date, things could have been worse, as evidenced by other stories on this list. First impressions matter, but they can be altered. If Patrick is a decent guy, there's a chance the girl could look past the not-pee stain, and they share a lovely evening.