all three were much better on their modern instruments . `` how did you learn to be so untrusting ? '' he had already put his screen back into its box . he performed a few scarf tricks , most of which went off without a hitch , and then came to stand in the center of the stage , face grave . we left the zoo after that and went home to play some catch . i could n't paint when molly posed because she 's only a model to me , like a vase of flowers . 