troublemaking
The act of purposely causing problems or mischief for others.
Troublemaking is the act of deliberately causing problems, disruptions, or mischief. A troublemaker might interrupt class with jokes when the teacher is trying to explain something important, start arguments between friends who were getting along fine, or break rules just to see what happens.
Troublemaking differs from honest mistakes or accidents. When you accidentally knock over a glass of milk, that's not troublemaking. But if you keep tapping your pencil loudly during a test even after being asked to stop, that's troublemaking. The key element is choice: troublemakers know they're creating problems.
Some troublemaking is fairly harmless, like a younger sibling who hides your homework as a prank. Other troublemaking is more serious, like spreading rumors or damaging property. Either way, troublemakers often think they're being funny or clever, but they usually just make life harder for everyone around them.
Interestingly, people sometimes get falsely labeled as troublemakers when they're actually pointing out real problems or asking important questions. A student who keeps asking “Why?” isn't necessarily making trouble; they might just be curious. The difference lies in intent: is someone genuinely trying to understand or improve things, or are they just stirring things up for their own amusement?