I man defended himself against a cougar with a knife earlier this year in idaho... so better than nothing. see article..

http://www.kpvi.com/Global/story.asp?S=10724881

That picture has been around for years. Not sure what the latest rumors about it are, but it certainly was not killed this year.

a knife against that!!!! <buzzer sounds> aint happening. that thing has 8 knives like yours in its mouth.

kewl cat, even if it is 8 yrs old