Jack in the Box played Dr. Frankenstein and came up with this concoction: the Bacon Shake. Unless you're a daring 7-year-old, the thought of bacon floating in your milkshake is probably repulsive. Don't worry, apparently it's only bacon flavored.
If you aren't horrified yet, SFist sent someone to their local Jack in the Box to test it out. Their verdict? "Aggressively" bad, hitting the senses like "smokey maple syrup." The only bright spot that they mentioned is that because it's artificially flavored, it's "technically vegetarian."
Vegans: feel free to go ham. Some things just don't go together, though.