Your first instinct would obviously be to run screaming and hide, quivering, under the bed, but look closer:
The flat, expressionless face; the eyes that register no emotion: this Auton is showing all the classic signs of Autism.
With a little love and attention, and a tolerant education system, it is entirely likely that this mass murderer bent on world domination would have developed into a fully functioning member of your society. He could have been an accountant, a lecturer in mathematics, or just about anything, really! Indeed, there may be many Autons working in your office that have been stopped from attempting murder and world domination at an early age. Or at least stopped from attempting one of them.
Here is another example:
At first, it looks like this creature - a Sontaran - is up to no good: he's probably getting ready to capture and torture some humans as part of a draconian alien experiment. However, after a more unbiased examination, it becomes clear that this Sontaran's evil ways are merely compensation for his deformed features. Look at how fat his face is! He was probably teased at school all the time. I think we all need to feel a little compassion for all the little potato-heads (like this Sontaran must have been) at school. After all, those chubby little chubsters could one day grow up into chubby huge chubsters, bent on capturing and torturing you! A little compassion could go a long way.
Here's an Alzarian Swamp Beast. In the case of this critter, I think it's fairly clear that sublimated sexual desire has led to its vicious, swamp-dwelling ways:
If only he had found someone to kiss and love him, maybe things would have turned out all right.
I mean, would a hug really go astray?
Show a little love, people. It wouldn't hurt you, would it?
UPDATE! - There may be those who object, saying, 'Auton's have expressionless features because they are store mannequins'. Well, obviously, but that doesn't mean that store mannequins can't be autistic, does it? See, this is what I mean - this is exactly the sort of thing that gets misunderstood all the time. Shame on you for even thinking such a thing! If an Auton kills you, don't come running to me for help!