Which scenario is an example of mischief?

Mischief typically involves deliberately causing damage or destruction to property without the owner's consent, and it often reflects a sense of playfulness or malice. Vandalizing a public park fits this definition well, as it involves the intentional act of defacing or damaging public property, which affects the community’s enjoyment and use of that space. This type of behavior is characterized more by the intent to disrupt or damage rather than to steal or cause physical harm to a person.

Breaking into a building primarily pertains to trespassing and potential intent to commit a crime but does not necessarily involve the destruction of property. Stealing a bike directly relates to theft, which focuses on taking someone else's property unlawfully. Assaulting another person is a violent act against an individual, which involves physical harm rather than property damage. Therefore, vandalizing a public park stands out as the scenario that exemplifies mischief due to its focus on damaging property in a thoughtless or playful manner.