now , fair '' s fair , he '' d been in the army and watch and you couldn '' t spend all that time in uniform without seeing a thing or two - or three , now he came to recollect - and it was true , as nobby had pointed out , that the ballerinas down at the opera house didn '' t leave a lot to the imagination , at least not to nobby '' s , but when all was said and done ballet had to be art even though it was a bit short on plinths and urns , on account of being expensive to look at , and moreover ballerinas didn '' t whizz around upside down .