From movies I have watched about aliens, when they cover with a human form and it's done too fast (i.e. for a photo op, etc.), sometimes there's not enough to cover their demonic souls completely...but usually the arm pit is saved for last so it's out of public view? This is tangible proof that they are indeed demonic in nature and that their souls are completely dark!

For those too gullible to figure out, this is entirely satire (except the part about them being demonic and having dark souls)...just sayin!