I have a devious plan. How about I trick the fire department into thinking a house is on fire?
I hope you are joking! Why do you want the fire department to believe that a house is on fire?
I like to see the firemen's reaction when they see there is no fire
You are wasting valuable resources by tricking the fire department into thinking there is a fire when there really isn't one. You are wasting the time of the firemen plus wasting taxpayer dollars by calling in a false alarm. This is also against the law.
Nah, it's funny and it's not like I'm going to get in trouble for it.
Maybe not the first time, but if you do it often enough, they will document and keep a record of you and send the police over to arrest you for a misdemeanor. I am sure you can find other alternatives to have fun. Maybe prank your friend instead?