About 20 years ago I had the bright idea of saving trips to the pharmacy by having them mail me my medicine. After it was a week late, I noticed that I hadn't been getting any other mail for a week, either. I went to the post office and learned that my mail was on a vacation hold. Another tenant living in my small building had filed a legitimate hold, and the P.O. decided that it applied to the whole building, instead of just his unit. That was the last time I entrusted anything important to the USPS.