[Dunx] The latest theories in quantum apiology demonstrate that bumble bees cannot exist in a solitary state - they are always in a diapis form, known as the 2bee. On observing the diapis, the waveform collapses into either a present bee or the not present bee, in other words 2bee or not2bee.
As well as writing a Left-Hand Concerto for Paul Wittgenstein, who lost his arm in the war, Maurice Ravel wrote a No-Hands Concerto in G, in which the unfortunate amputee soloist prevails upon a fellow pianist to pick out the notes on his behalf.