I love watching other people machining - I had to teach myself as my mother wouldn't let me near her hand Singer. Silly really, as two heads would have been better than one - she was always getting in a mess.
Someone I knew gave me one when his mother in law died. He came back a few weeks later and asked for it back - they had changed their minds, and wanted to give it to charity. Luckily I hadn't taken it out of the box.