On my way in to work this morning, a 944 came up behind me and passed me on an otherwise empty road. We both kind of stepped it up and had some fun keeping up with each other until I realized I *may* have been going 70 in a 40 zone. At no time did anything feel out of control, slippery, narrow, obstacle-laden, or anything else. But. It sure seemed really bad when I noticed just how far above the posted limit I had unwittingly gone. Anyone else experience this? How do you balance sporty, spirited fun with avoiding being an asshole or a menace?