I worked on adding iOS and macOS Shortcuts support for Tailscale's latest release. I wrote a blog post with examples of shortcuts and automations that the Tailscale actions could be combined with. One that didn't make the cut was using sound recognition, for things like “In case of an emergency, break glass to activate Tailscale”.

Other possibilities include "Cry/shout/scream to connect" and "Let your pet control your connection state".