Yes, sometimes people go beyond what's required.
As I passed through the security scanner at Detroit Metro Airport on a busy Friday afternoon, I was happy not to set off the metal detector.
"You're good," the TSA agent said. Without missing a beat, he added" "Your fly is unzipped."
He was right.
Embarrassed for quick second, I was appreciative that I didn't end up walking around the terminal with my zipper at half-mast.