Hi
Good luck with Purdy...she looks very sweet!
I ride out quite alot with my little dog Minx...she's a border terrier so loves lots of exercise!!
Sounds like you already had some success if she didnt run away first attempt!
The first couple of times i too her out with polo i too k my mum on foot just to make sure they would be okay & never had any problems!
Minx does come with me alot to the stables so she already had alot of horse sense & it gave polo a chance to get used to her as he can be a so &so with dogs!
I dont take her when im going around roads ,which i have seen some riders do,
just dont think its worth the risk no matter how good they are.
The other advantage i have is Minx is VERY greedy so i always take a few treats with me & if there are any other dogs about show her them till we pass then throw some down for her it works wonders!
Its great to be able to do this as the dog gets a good walk & the horse get exercised.....kills 2 birds with ine stone
Good luck
Nicola