[Buckeye McFrog]

law enforcement officers (at least in Brazil) theorize that vinegar can be used to make a bomb

Vinegar, Drano, Brass Cleaner, Pledge, Cream of Tartar. Saw it done on MacGyver once.

[Salgak]

Well, that’s all well and fine, but did the guy ALSO have a Swiss Army Knife, a Bic Lighter, and Duct Tape. ALL are required for any self-respecting MacGyver Device. . .