Fwiw the only place I had a bike stolen was the secured underground garage in my apartment complex. Never had issues just parking it out front while running errands or other such stuff, or parking outside work during the day. I'd figure foot traffic would keep angle grinding down. I've personally not seen angle grinding done that brazenly before, seems liable overnight though where the thief has time to work and the assumption no one is awake to hear the grinder (such as what happened in the case of my apartment).

If I can't find a good spot to actually lock up the bike though I will just bring it in to wherever I'm going. Shops or restaurants don't seem to care if a bike is parked in the corner and you can thread your ulock through the wheels and make it useless to ride off with.

> Shops or restaurants don't seem to care if a bike is parked in the corner...

This doesn't scale to wider bike adoption, though.