[throwaway426079]

"The number of times I've shit flying out of or off of cars & trucks"

I'll take that very seriously in my car too - and back off if I see a badly loaded vehicle. There's not much protection from a windshield.

[Ntrails]

I remember following a small towed trailer with some old bins on a motorbike. A pretty normal round bin lid blew off and veered to the side - nowhere near me.

I had time to register it happening but not sure I had time to move much - and I'm pretty sure it could've wiped me out. I paid a bit more attention to loads after that - but I suspect the lesson slowly faded.