> when it's convenient not in general: my wife is a letter carrier part time for USPS, and the overwhelming 2 problems they face are people never getting arou

> when it's convenient not in general: my wife is a letter carrier part time for USPS, and the overwhelming 2 problems they face are people never getting around to it being convenient, and Amazon shipping huge packages via USPS. Regarding convenience, mail gets recalled and addressees have to be seriously inconvenienced to retrieve it. this isn't a punitive thing, but a logistics issue.