tallyho!
Following a strict mediterranean diet...
Yes, there are a lot of instances where people seem incapable of actually holding onto a lead. Surgical attachment? .
I do understand why people want to take their dogs, and enjoy all the times we go with a friends dog as I like them too. But loose dogs chasing horses is more than a nuisance I saw this one while on a course walk http://www.horseandhound.co.uk/news/not-acceptable-four-star-rider-chased-dog-gatcombe-586871 and it was a tricky combination we'd already seen a few people have trouble at. IMO horses should not be put in the position of losing their concentration and risking a mistake at a fence because of dogs chasing them. There is already enough risk involved in this sport.
Totally understand the frustration. The amount of effort and cost to get to such levels then have a loose dog ruin your day can not be anyones idea of a fun day out. Having the privilege to be allowed to take your dogs out to such events comes with responsibility and it shouldn't cost someone else's enjoyment when competing. It's just not fair.