Sometimes I think the soundtrack of my life is the combustion engine. Most of the time it is a small 2 stroke type engine. Almost always a leaf blower but, sometimes even an edge trimmer or a chainsaw. But, no matter where I am I hear some 2 stroke engine going off, at all moments of the day it seems. And other times, I am constantly hearing some annoying truck with pipes or mazdarati without pipes making unsubstantiated noises, usually as they speed pass me while I am out training. But, the next time you got a second take a second and listen and gauranteed the first noise is some kind of gas engine.