I wish I was perfect, or maybe I don't. Like you said, common sense, does it happen to you to drink alcohol while driving??? Do you ever forget to wipe yourself??? These are all common sense, but for you it can happen... I hope not
And yes I always put my seat belt on before I turn on ignition
It sucks, I know! And no my fly is never open in public, i don't use pants with zippers, buttons only, zippers can be hurtful(see I made a mistake once upon a time)
Cheer up "buddy", and use common sense!