Well I never claimed not to be a complete idiot. I conveniently forgot that I had loaded the Pan-Holga 360 earlier and then decided I wanted to shoot a short video in the living room of it in action. There is no actual shutter on the Holga though and only the aperture slit controls the admittance of light, so whenever the camera is in motion it’s exposing film.
The Pan-Holga was loaded with Fuji Acros II (ISO 100) film, I’m surprised that the exposure had enough light at all, inside in the morning. Oh well, let this be a record of my infallible intellect.