Texting and the Audio Book

So many people think they can multi-task.  How often have you been texting someone when someone else is talking with you and you hear nothing?  Put someone on the show to the test.  Have them start texting their friends as you play a 60-second portion of an audio book (for all to hear).  Once done, ask them about the part of the book you played to see what they retained while texting.