You'd think washing printed circuit boards with copious amounts of water and even detergent would be hazardous to their health, but the talented being in this 
knows better. He finds a Casio keyboard along the side of the road, looks a bit further to also unearth the bottom cover, and then takes it home to restore it to its full musical glory.
Another association with the word piano comes from a hit song in my past: Cliff Richard and the Young Ones, and their hilarious destruction of one such instrument during their performance...