Which loud noisemaker do YOU think would be the most effective?

Which do you think might be noticeable by police and nearby people?

Which do you think might be more effective against an attacker?

Xavier has some thoughts on effective self protection and the need for the proper mindset.

There are the Four Rules of Gun Safety.
There are the Five Rules of Concealed Carry.

Now, there are the Five Rules of Staying Alive.

"When her body was later found in the hospital parking lot, the whistle was still between her teeth. She had blown it until it filled up with blood as she died."

Go, Read. Stay alive.