Judges 15:4 - And Samson went and caught three hundred foxes, and took firebrands, and turned tail to tail, and put a firebrand in the midst between two tails. 5And when he had set the brands on fire, he let them go into the standing corn of the Philistines, and burnt up both the shocks, and also the standing corn, with the vineyards and olives.
Not to mention that any man who can, in a short period of time, catch 300 foxes by himself is NOT someone you want to mess with.