Thank you LadyTurmoil. It's a longstanding problem, although episodic, so I'm used to it really, but it still frustrates me beyond belief, as it always seems to happen when I really need to be firing on all cylinders.
Sweetkitty, that's what I was afraid of with the pigs' ears.
My dh has really annoyed me this weekend, complaining when the dogs don't respond to his cues, but not actually doing any training with them - and he does know how, as we attended dog club together for years before we had the dcs. Then when we've been out and they've come flying back to the whistle he's gone on and on about how incredible it is - oh yeah, of course, because they taught themselves that didn't they! 
We've been to two separate popular dog walking spots today to try and meet as many dogs as possible for Pip and managed to meet a massive ... 2.
Where is everyone? Still, both times Pip approached them himself, timidly, but still an approach and both times they were lovely gentle adult dogs with great communication skills - so 2 good interactions is better than several rubbish or scary ones.
Ohalvo - poor Floyd. How did you get on at the vets?