Well, they don't play themselves.
I've been conducting an experiment for 10 years now. Bought me a drum machine back then and decided to see if it was an "instrument" or not. Figured that if it wasn't, it wouldn't need to be "played" by a "player". So I took it out of the box, plugged it in, turned it on, and waited for it to start doing something by itself. Sitll waiting...
Funny, my clarinet's the same way. Haven't touched it in something like 20 years, and it's not made a sound either.
I don't believe you.