The boy has been potty trained for more than 6 months and very seldom has had accidents in that time and never wets the bed, but in last couple weeks he's had several instances of getting to the bathroom, mounting the toilet successfully and then peeing all over the floor.
He treats these as accidents, but I'm a little skeptical. It has never happened so far when he is accompanied to the potty, and as a technical feet I'm unclear how it is possible. He sits to pee and there is a kid seat shaped to facilitate a reasonable posture.
So far I've gone along with the accident theory, sending him to get a towel and new pants as assistance with the clean up, but not taking any steps past chatting to establish facts and the appropriate reactions.
I'm uncertain of how to proceed. He seems happy and cooperative enough after the fact that I doubt it is planed malice and it isn't often enough that it is a serious problem, but I had him down as reliable.
My tentative plan is to watch him closer for signs and prompt and accompany him when I think he might need to go, but that seems like a lot of work and a reduction of a valued autonomy he generally uses correctly. I'm very reluctant to use video to monitor exactly what happens but that's the only other plan I have.
What might be done to minimize these events or to further investigate their cause?