Crocs
I once went 'crocodile fishing' at a croc farm in Florida. For a few bucks they'd let you dangle sausages on the end of a long strain on the end of a pole.
Trust me, any croc larger than say three feet long is pretty much going to rip that pole out of your hands. We had all sizes of crocs there, and you soon learnt just how vicious and powerful even the 'little' ones were.