Several years ago, my sister, mother, and I made a trip to Memphis, TN, and ate at a truck stop . . . no, we didn’t purposely go there to eat at a truck stop, but it was the highlight of that two-day trip to our mother’s eye surgeon.  We really enjoyed going to Graceland too, but since we measured our fun by tried and true scientific methods, it just didn’t live up to our “fun standards”.  Reaching the top of our fun scale depended upon 1) how long and hard we belly laughed, and 2) how close any of us came to peeing our pants.  While Graceland was a great time,…