There are some people who literally kill it every Halloween.
Did someone say.. Chocolate???
And some people who, well, don't (they're Spongebob, Patrick, and Gary):
Maybe you didn't put much time or thought into your costume:
Maybe people couldn't tell what you were (this is supposed to be Elsa from Frozen):
Maybe you just threw on whatever you could find:
Or maybe, your costume just straight-up broke.
