It's the Fifth of May, which is supposed to celebrate Mexico's improbable war victory over the French in 1862 (when the French still had a good reputation for war), but a lot of people think it's about drinking cheap Mexican beer and tequila. And with Arizona cracking down on Mexican immigrants, well, how about this timely ad spoof from Trevor Williams, playing off of Corona's TV campaign. Can you tell what's wrong with this picture, though? Roll the clip and try to spot it.