yesterday, I was paying for a purchase. I ran my hands over the coins I had. Here in canada we also have one and two dollar coins as well as pennies, dimes, nickels, and quarters. I was llooking for a quarter. First I found my loonie (one dollar coin) then my toonie (two dollar coin) my dime, and then my quarter. I said that I was sorry for taking a while. He was fascinated. He asked how I knew what they were? I explained about feeling the edges, the shape, the size. He wasn't being patronizing. He just had never thought this through I am sure. It was fun to tell him about it and have him learn. Maybe next time he makes change for someone he'll close his eyes? Probably not.