Don't blow your whistle

My dad got himself a Bear Grylls survival knife. I think he sees himself as a sort of intrepid explorer of the wilderness.

With it came a whistle for attracting attention.

Trying the whistle at home we noticed that our little dog, a vicious little primeval throw-back, comes dashing in when it hears the sound. Even if it's at the bottom of the garden it hears it and appears as if teleported.

So when you're out in the wilds of Canada or Alaska hiking and you fall down, breaking your ankle and need to signal for help.

DO NOT USE YOUR BEAR GRYLLS WHISTLE!

Because instead of help you are more likely to attract a snarling, ravenous pack of wolves.