From the Wall Street Journal Law Blog, The Legal Implications of Throwing Eggs –
- Theft: Stealing candy from another person, or a location, is classified as “robbery.” Use a real or fake weapon in the commission of this robbery, and the stakes get even greater with possible felony-level re-classification as a “violent” crime for which penalties get gravely serious. So, trick-or-treaters should wield that pirate’s sword judiciously.
- Vandalism: Throwing eggs or any other item at cars, homes or other personal property, smashing mailboxes, putting shaving cream on cars or garage doors can all cause permanent damage, and are considered more than just a prank by police. Retribution can include community service or repaying monetary damages that can add up to thousands of dollars.
- Criminal Mischief: “Toilet papering” trees or other personal property, smashing pumpkins and other seemingly innocuous pranks are also unlawful, and can result in fines to cover property damages and other forms of civil law punishment.