Oral sex can not be given or received anywhere.
Thistles may not grow in one’s yard.

Baltimore
It’s illegal to throw bales of hay from a second-story window within the city limits.
It’s illegal to take a lion to the movies.
It is a park rule violation to be in a public park with a sleeveless shirt.
No person who is a “tramp” or “vagrant” shall loiter in any park at any time.
It is a violation of city code to sell chicks or ducklings to a minor within 1 week of the Easter holiday.

Baltimore City
Though you may spit on a city roadway, spitting on city sidewalks is prohibited.
You may not curse inside the city limits.

Cumberland
It is illegal to use profane language on a playground.
Knocking stones into a public park is prohibited.
 
Rockville
Persons may not swear while on the highway.
It is illegal to remove a public building by writing on it.
Citizens may not swim in the public fountains withinthe city limits.