These have been available for a while on ebay. Brilliant idea but like the yellow dog thing a bit useless IMO as numpties won't know the significance (you'd be too close for comfort before you could read the text) and it won't stop idiots letting dogs barrel up to reactive dogs, they don't care either way.
Can't argue with the 'adopt me' vests, SHWA use bandanas in the same way.
Hi viz vests are becoming a big thing on the agility circuit with 'I need space', 'no dogs', 'I'm deaf' etc. Even D finds queuing extremely stressful and will have a nasty pop at dogs crowding her, I can see every other dog wearing one of these by the end of the season.
I think it's a good idea, ok so 50% might not notice and won't change their behaviour/control their dogs, but if they lead (bu-bum, I'm here all night ) to 50% being more respectful and learning that not all dogs like others then it can only be a good thing.
And one for D. Might seriously consider this one, she had a right handbags moment last time out and spent the rest of the time in the queue making snarly bitchfaces at everyone.