Starbucks Barista
No, not the folks making coffee (or pushing buttons as Chuck would say) at Starbucks, but the espresso machine by that name.
The Barista is a fairly simple low end or mid range (depending on your perspective, I guess) espresso machine and mine just stopped pumping. It whirred and vibrated like it normally did, but no water came through.
It stopped working the same day my Mac battery broke. Armed with a tip, also from Chuck, to try forcing water into the pump to try to force it to prime, I turned it on, and, well, it just worked. It fixed itself.
Maybe I should go check my investments.