[npretto]

Surely going to lunch with 10k of equipment is safer, especially when you'll need to go to the toilet.

[Grazester]

It's a backpack. You hang it on the hook on the stall door where you hang your jacket

I think there is less of a likelihood someone is going to jump you for your backpack when you are at a restaurant for lunch than there is for them breaking into a car parked only a dimly lit street for said backpack.

[theshrike79]

Except that American public toilets have gaps so large between the door and the frame that a thief can pretty much just grab the backpack without opening the door =)

[Vegenoid]

I can’t tell if you’re being sarcastic or not, but generally car break-ins are much more frequent than muggings. And bringing a bag of expensive equipment into the bathroom is almost certainly less risky than leaving it somewhere, whether in your car or elsewhere.