Coming to the US I'm shocked at how easy a Debit Card transaction is. In Chipotle (fast food) the card is just swiped. No PIN, no Signature, nothing: give the card to the operative, they swipe it and hand it back, a practice obviously not restricted to Chipotle - but I guess that's similar to contactless paying which I use in the UK - though my friend has deliberately drilled through his card to disconnect the wireless bit.
For buying gas at an automated pump, at some places all I need is my Zip code.
It feels very unreal compared to the Signature to -> Chip & Pin systems I'm used to.
I have "Ask for photo ID" written on my signature strip - though I've never needed it.
They didn't know that knob 2 changed the power (despite it being labelled), they just kept adding more time and eventually giving up.