Ryan Halderman may be to young too have enjoyed Toy Story when it first came out, but he has since come to understand the genius of the film series. And in doing so, he's noticed that he can look quite a bit like the villainous Sid when he tries to. Halderman snapchatted a picture of himself glaring beautifully, with a skull emoji added onto his black attire for the full Sid effect. 

Sources: h/t Golem13