Oh I’ve had the same loads of times when marshalling at CX races.
Years ago they used to hold CX races at Shirley Hills nr Croyden, really good course. One woman insisted on walking her dogs right through the middle of the course saying that it was a disgrace because it was the second race we’d held there that year, the disruption, you’ve got no right, blah blah.
Same again at last years Todmorden CX organised by Chipps. One bloke who could see quite clearly what was going on walked right down the middle of the course cos “I always walk my dogs here”. He said he’d sue if anyone hit him until we pointed out that we’d asked him not to walk there, warned him of what was happening and that, if hit, the rider could sue *him*. He swore at us a bit, promised to take his complaint to “the highest level” and wandered off to use one of the many dozens of acres of the park nowhere near the race.