Vagrancy and loitering ordinances, public intoxication, obscenity, bribery, tax and the strict-liability regulatory offences where nobody has to prove you meant it.
The Glass Booth1967Katz v. United States — Transmitting Wagering Information by Telephone Across State Lines
The Oil Pipeline1999United States v. Hanousek — Negligent Discharge of a Harmful Quantity of Oil into a Navigable Water — Clean Water Act (Federal Misdemeanor)
The Drug Company President1943United States v. Dotterweich — Introducing Misbranded and Adulterated Drugs into Interstate Commerce (Federal Misdemeanor)
The Tucson IRS Protest1992United States v. Schoon — Obstruction of Federal Agency Operations; Failure to Comply with Federal Police Order