I still don't have the nerve to try this with a regular dog walking by on the sidewalk, since Vanya in full cry does a passable imitation of an emergency warning siren.
I've been traveling for work, so Vanya hasn't gotten as much practice as I'd like. We've skijored a couple times in the past week, but I think we're all getting tired of mushy snow and mud. We're working on recalls a lot more, since they've degenerated a bit, probably because of using the e-collar (on very low stim, but it still changed the cue from meaning: "run really fast to Nancy because I'm about to get the most amazing treat and game possible!" to "I'd better amble on over, otherwise something ucky might happen". Our emergency recall cue was going to be "Cheeseburgers!" but I shortened it to "cheese!" to remind me that this is about Vanya WANTING to come, not about me forcing him to come.