If people don't stop pestering the Osaka police department, they'll, er, call the police:
The number of prank calls to police in Osaka has drastically increased this year, averaging about 490 a day, officers say."We have no choice but to ask the public to use the emergency hotline to police properly," said an officer from Osaka Prefectural Police. "We may even arrest persistent prank callers."
Officer, let me introduce you to the concept of "filing a false report." You won't regret it.