Only once in my life have I ever, to my knowledge, received a package from UPS or FedEx earlier than the "estimated arrival date" on the tracking information. That day was yesterday. Since I wasn't expecting it, I didn't make it back until after the office closed. (My packages are delivered to the main office. I like this service quite a bit.) So, before work today, I walked over to the office, only to find that they were closed for the whole day for painting. The one time that UPS delivered the package a day early, I'll be getting the package a day late.
Irony, definition #2: incongruity between what might be expected and what actually occurs.