They tend not to wander onto Morecambe Bay, though I have seen them on the back road into Lancaster. As for horses, we used to keep the kids' ponies in the back garden.
( And remember, as well as Mathilde of Flanders, ( the Deerhound ), we also have Cyle Larin's #1 fan, Harbottle Golightly the Newfoundland, and our Beddie/Whippet cross, going by the name of Beauregard Jackson Pickett Burnside of Peckerwood ).