We fear the unknown, and the most familiar representation is that of ourselves. The deformity is a way to juxtapose the familiar and unfamiliar. An object that imitates a person is interesting and potentially disturbing, because it creates a sense of having lost the means to identify what is real. There is also a sense of the uncanny that emerges when an imitation is imperfect. This is especially the case for faces and this is often demonstrated in how difficult it can be to portray a realistic human face, in CGI for example, without it slipping into the ‘uncanny valley’. For me, I feel it is also an expression, on some level, of a persistent sense of alienation.