Heh - apparently piano lessons did the same for me. I think I told this story in Memoryfest, but I used to have vivid nightmares about Franz Liszt lurking outside my bedroom window (probably to take me to task about not practicing). I think it was because the portrait of him in my piano book was quite ferocious - a similar one is up in the bandroom my concert band rehearses and it still gives me the creeps!

(edited to add userpic of terrifying Franz Liszt - though this isn't the picture)