“It’s usually easy enough to ask.”
Yes that was what I said in my first post
“Unless you know that this store allows, you can’t assume that they do.”
That part I disagree with. I think it is safe to assume most store owners are as MGD put it “really nice guy or just a good salesman,” All the more so when you add that it is often done and Ive never seen any one complain, and that there is minimal harm, and gain as WTP pointed out.
Though of course: if unsure, ask! (I have, dont believe me though ask for yourself)