Hercule Poirot:  But I see that you yourself have lent a few pieces ?
Mr. Shaitana: Oh , _ one _ picks up trifles , here and there . I have a few interesting objects I could show you . I daresay I could even produce one or two things in your line , Poirot .
Hercule Poirot: Ah , so you have then , your private ' black museum , ' no ?
Mr. Shaitana: Oh , no , no , no . I do n't collect the artifacts of crime : the murderer 's hammer , the poisoner 's cup . I collect only the finest objects of their kind .
Hercule Poirot: And what do you consider to be the finest objects , artistically speaking , in crime ?
Mr. Shaitana: Why , the human beings who commit them , Monsieur .