I've only really locked it at my local supermarket which is really busy and its at the door and cashline point so has a fair bit of traffic, plus theres quite a number of bikes being locked there so anything happening is pretty much zero.
I use an Abus Bordo granit x plus 6500. I'm not insured as of yet. Keep meaning to but just cant get around to it.
If im in the city center and i want to go into a shop i lock it in a busy area, and at the better end and if possible against railings rather than in amongst the rows of locked up bike, reasoning being people are used to seeing people fiddling with bikes and locks in these rows, so keeping it separate its a bit more visible. I also use a kryptonite cable loop to encompass the wheels just so as to porevent opportunists nicking a front wheel. Internally cabled droopper so thats not easy to remove. so I reckon safe.
Stopping off at a newsagent for a can of juice or choccy, especially in a quiet area or the city or west end, I lock it to as close as possible and aim to be in there only a few minutes.
The lock lives on the bike and i'm pretty used to locking it even if i stop to have a can of juice or ciggie. I never ever take a chance and if it cannot physically be with me, then it gets locked.
Sometimes though if in the city center, I'll lock the bike, go into a shop like M&S, but sit at the door and watch the bike from a distance to see if it gets any attention, but thats probably more down to being slightly paranoid given the cost of this bike is 8 times what I'd normally spend on one
