They say you never regret what you have done, only what you haven't done. There is one thing that I have done that I regret. When I was little I had a toy clown who played cymbals if you pressed his tummy. He wasn't my favourite toy, and once when I was told to clean up the mess in my room I threw him away in the garbage.
The thing I regret I didn't do was playing – it has just occurred to me now, honestly! - if not cymbals, at least percussions in a student orchestra. I was sixteen and had by then given up my music lessons, but the conductor, a family friend, tried to persuade me that anyone who could read sheet music would be perfect with chimes, tambourine and triangle. I thought the whole idea was ridiculous. The conductor's stepson, a few years older and without any knowledge of music took the job. He got tons of good friends in the orchestra, travelled all over and had a lot of fun.