tl;dr Even the airport water is suspect.

I went on a trip to a Central American country for about a month. Really careful to only drink bottled water the entire time, etc. Came back early this morning, and shortly after getting off the plane...well, the revenge was starting to take place.

I made the mistake of getting a fountain drink at the airport since my flight was slightly delayed...assuming that the water used for ice would be treated/filtered at a major international airport. Learn from my mistake. :D

I rushed home (thanks to the Uber driver for having a lead foot), and thankfully had a couple of packs each of ABU Preschools and Forsite AM/PMs that I ordered recently, but hadn't used. Given that having a 5 second warning seems to be the norm for this sort of bug, the protection is much needed.

I'm normally not incontinent, so this is an eye-opening experience!