Touch, feel. You know. It's actually part of marketing strategies. You ever notice how customers like to touch and feel merchandise? Watch people at a store. .
I see store clerks quite often that I would love to fondle, but I don't want to go to jail or hear a loud scream.....;-)
I saw an old 60s clip of Candid Camera. They left a big bright shiny chrome-plated nut/bolt thing on a customer service counter. While the customers had to wait, just about everyone played with that big shiny bolt. Some people picked it up and played with it and didn't even seem to be aware they were doing it while they looked off in the distance waiting. One dude turned the nut too far and it came off the bolt. He quickly put it back on and then put the thing down on the counter, as if he didn't want to be accused of breaking it. .