Laughter, n. An interior convulsion, producing a distortion of the features and accompanied by inarticulate noises. It is infectious and, though intermittent, incurable.
I have long held the opinion that the amount of noise that anyone can bear undisturbed stands in inverse proportion to his mental capacity and therefore be regarded as a pretty fair measure of it.
I'm a self-taught musician, so I never really had the restrictions of any one instrument. I would always just sort of pick up instruments and make noise with 'em.