No joke: this is probably the most important question you'll have to answer all day. Study the pictures carefully and settle this once and for all in the comments.
http://flavorwire.com/248099/15-incredible-dog-costumes-i...
Dogs are often good sports about letting their humans lovingly humiliate them, AKA dress them up. So if you're planning on participating in National Dress Up Your Pet Day on January 14th, here are some great ideas.
Just as accurate as you high school history books. Only with 1000% more awesome.
It's not always the mask, but who's wearing it. This is not right; someone should probably contact the ASPCA.