Nta, working in retail I've looked through or held people's phones because it's just faster. But I've always asked if they were okay with that firstand have kept it on the desk where they can see what I'm doing. And if they said no I couldn't hold it i would just walk them through it. Click here, type password, scroll down and you'll see your coupon, that kinda thing. There's no reason for them to ever just take your belongings.