1. take the chain off the chainsaw.
2. make sure it will fire up on first or second pull.
3. spread rumors about a serial murderer in the neighborhood.
4. find a Jason hockey mask or freddy kruger mask
5. wait till party is hit a low point
6. go put on mask and grab chainsaw
7. fire up the chainsaw rev it up as much as possible
8. bust through the fence/ bushes(if apply) wave chainsaw over head like a lunitic.
** The effect would be magnified 100 times if you have a close friend take part. take the chain off the chainsaw and pretend to cut him/her in half having friend fall to ground screaming and act like he/she is dead.****

Then sit back and watch the carnage.
New clothes for the sweet 16 party $100.00
present for the lucky person $50.00
Your costume for the party that you saved from a previous helloween. FREE.
Watching a bunch of snobby, bratty 16 years old shit thier pants on MTV..........PRICELESS!