Honestly, I hadn't flown in an airplane for quite some time. I was directed down a particular lane and told to face forward. I asked the guy what was this thing (honestly I didn't know what they looked like and assumed the "xray" machine would be different looking) and he mumbled something. At that instant I realized what it was and asked if it was safe.

What you have to understand is that first your putting stuff in a basket and then they just instantly tell you to go down another lane. In this airport there was a line of 4 people waiting to be xrayed. It was seriously like one out every two were asked to do it.