A long time ago (about 10 BC*) I tried to torque across a major thoroughfare while tightly strapped and cleated in. Well, the quick release on my rear wheel wasn't tightened to specifications and when I pumped on the crank, the chain pulled the axle forward and the tire jammed up against the chainstay. Needless to say, the bike immediately stopped and I plopped over in the middle of the road, still neatly strapped in. The screeching car tires drew attention from all within earshot such that the next day and 10 miles away, an acquaintance asked: "Have a little trouble with your bike yesterday?" Now, it is not unusual for me to resort to using a tire lever to open my QR.

*Before Clipless