I wanted to freeze the split-second when private circuitry spills into public air, and the bus becomes a shared body. I chose a horizon split: below, the mundane press of metal, skin, and embarrassment; above, weightless mercury rising from seams to mirror our new limb. Here I show the exact overlap of residue–event–scar on a single grab bar and let the accidental broadcast ignite ecstatic vertigo — notice how sound dents the floating metal and how skin calmly re-closes around an interface that now refuses to be separate.