Why I won't go to zoo's anymore

I was attacked by a flamingo at a local zoo. Fearing for my life, I whipped out my pocket knife and slit its throat. Thankfully no one was around to witness the incident, so I planted the knife in the monkey cages and ran out of the zoo to my car and drove home.

Later that night; I saw on the news that a monkey had found a knife and gone on a killing spree.

I can’t help but feel guilty about it.