This might be the same depending on how you look at it. When ever im out with Kai people come up and stroke him with out even asking first. Kai doesnt really mind unless theres more then 1 stroking him. If that happenes i simply tell them to wait till the other persons finished stroking kai.
In your situation you could just be straight. Its your dog. i think you could of just asked to put ozzy down. Mind me he probably wouldnt remember it the next day