Again in QLD, we keep some 'extra horses' (young / not in work / geriatric) on a block about 10 mins drive from home, and I had dropped off to them a round bale of Rhodes grass that I'd paid far too much for and was driving home on the back roads.
I had basically flicked out the majority of all the loose grass bits from the ute tray with my hand - but there were obviously a few little bits left over that would blow out of the tray on the drive home.
About 2km down the road, being followed by a police car, got flashing lights so pulled over.
1st challenge was explaining the large kitchen knife in the centre console beside me (which, wearing muddy boots and not wanting to trek through the house and being in a hurry and not wanting to remove them), I had grabbed whatever I could reach from the doorway - being the knife block on kitchen counter, in order to cut the round bale mesh. Lesson learned, I now keep a small retractable key ring carton knife in the glove box of the car.
2nd challenge, was then given a stern lecture about securing loads and loose debris being dangerous to drivers behind you (of which there was bugger all of nothing - have seen more falling from loads of garden waste on trailers going to the dump, but anyway?)...point taken, now keep a tiny camping dustpan and brush behind the back seat.
No fines or tickets (thankfully), just a lecture and a red face...figured it must've been a slow work day?