Cindy: Unzipped But Not Unchecked

On Facebook, Cindy posts: “Left home with pants unzipped: check. Left money on bank counter: check. Hunted down by cash delivering bank teller in produce section of grocery store: check. Spelled one easy name incorrectly and one impossible name, correctly: check. Called “buddy” by my nail tech: check. Walked in sideways blowing snow: check. I think my work here is done.”

Question: How well do you have to know a person before you tip them off that their pants are unzipped?