I find it hard to believe that it's anything like 10% in use, just judging by my experience on the bus every day. You have one Gomer up front (These are always the guys who hog the front seats—correlation or causation?) who pulls out a huge slab and holds it up to his head vs. 30 or 40 people rolling their eyes and exchanging smirks behind their back. So my guess is 2-3% at best.
9/1/14 at 10:37pm