Oh jeez, I really don’t know where to start. Sometimes it isn’t my fault, like the time I went on two week cruise/Mexican vacation and the cruise infirmary froze my insulin. Or the time I was traveling for business and I finished my insulin pen. I started a new one and then instead of throwing out the old one I threw out the new one. When I realized it later in the morning I had to come up stairs and work with the maids to dig through the trash to find it. That one was embarrassing. And I have left my diabetes kit at home any number of times simply making a bad decision about what I would be doing in the future. It is easy to take a trip to some store a few miles away and then have your plans hijacked for hours. And I have left my kit at restaurants before.
I do have three clones of my meter and keep extra supplies in my backpack which goes nearly everywhere with me.