When I ride into work -- 15 miles -- I leave the house about 5:50 AM hungry, having consumed only a 12 oz glass of iced coffee. I find this very energizing and automatically flip into a "time-trial" mode of riding. You might consider me an "aggressive" rider. But I have no malice and will not do anything to endanger or be rude to you. This ride is the best part of my day. 12-13 hours later if I ride home -- that's a little more laid back!
Don in Austin