I was riding a greenway last year on my hybrid with my girlfriend, taking it easy and enjoying the nature and peacefulness when some kid on one of those motorized (gas-powered & LOUD!!) skateboard w/ handlebars comes from behind us and passes us. Now, I may be wrong, but I don't think those things should be on greenways - too noisy, smelly, etc.. Anyway, I got p!ssed and caught the guy and through hand/eye signals challenged him to a race. I so blew that kid away. Felt good. Never saw him out there again.