The Mustang auto-PFD re-arming kit they shipped was over a year past expiration, which you really wouldn't notice unless you were digging into the packaging. It's only stamped inside, on the bobbin housing.
Michael checked his other stock and found the same date, and then quickly and without any prompting, simply issued a credit for the whole order and said "keep it, you can still use the CO2 cartridge". Which is worth a bit on its own.
So...Kudos to him for doing the right thing, quickly and generously AND on his own volition. I notice marine
vendors are more likely than most to do the right thing, but it is still all too rare in this day and age, when the watchword of "business" seems to be "hassle the customer, they'll go away".