Hey, interesting topic indeed, got me thinking about my last accident.^^
I was about six or seven I would say, definitely in first grade. We had a little tinkering group, where we would cut out paper or color something. I don't recall if it was the first time, that I went there, it was in a youth centre or something like that, in the basement. I didn't know where the toilets were and I was really shy about asking someone. So I just tried to hold it, as long, as I could, but eventually lost the fight an wet my jeans. I don't think anybody noticed, and I didn't tell anybody because, as I said, I was really shy and also embarressd.
But of course I had to tell my mom, when she picked me up, she didn't make a fuss about it, stuffed my clothes in the washing bin and that was all she ever said about it.
The next time I had this group, I looked around carefully and then knew, where the toilets were, so I had no more accidents after that, but got a habbit of always looking, where to find the bathroom, when I go somewhere new^^.
I also recall an almost-accident, when my familiy and me were test-driving a car in another city. I had to go right from the start, but not only no. 1^^. I told my parents, but as we were in a rather big city, we couldn't just stop at a bush or something, so I had to hold it, while my dad searched for a place, where I could go. I think, my sister, who was in our car, had the same problem, but we couldn't really find a spot. When we eventually came to a rather quiet part of the city, there finally was a spot, where I would have been able to at least pee, but I had to poop so bad at this point, that I couldn't go, without fearing to go No.2 as well. So I had to go back to the car without having finished my buiseness and I had to hold on longer.
Eventually we found a bar, where my father asked the bartender, if we could use the restroom and that saved me from an accident.
Thinking about it gave me another story, where I went a little no.2 in my pants^^.
It was much later, I already had found out, that I was really into this sort of things, I think I was about 12 or 13 or so. I had some stomach-issues, perhaps an infection or something, which gave me the runs^^. But regardless of this, I went with my parents to go shop for wallpaper or carpet or something like that. I remember, getting out of the car and having to pass a little gas. Not that good of an idea, if you have diarrhea, which promptly caused me to go a little in my underwear. Not much, you couldn't tell or smell anything, but I feld, that it was there :).
In hindsight it was a really good shopping trip and I had a little more fun with myself, upon returning home ;).
That was about all of my unplanned accidents in my childhood, there were much more to follow^^.