Here's the best story we had this year with the USPS.
We were expecting three checks for insurance payouts. BIG money! Got one in about 10 days, two never showed up in three weeks waiting. Sister-in-law got all three of her checks in about 4 days.
Contacted insurance company, they were horrified, to say the least. Cancelled first two missing checks, reissued with UPS expedited (two day) delivery. UPS drops off checks the next day.
The USPS brings missing (canceled) checks the next week!
Anybody want two spare (canceled) checks? We're keeping them to show how screwed USPS delivery is.