Did you know Haydn, the playful composer, knew how to protest? In the music of symphony #45, he wrote this "message" to Prince Esterhazy. It appears the message was received and the musicians were allowed to go back home a day early.
This is one symphony you have to watch to believe. The whole thing lasts about 30 minutes, but this clip is just the last movement, so you don't have to wait so long.