He went down to his fishing pond to collect breakfast, Rainbow Trout none the less.
Upon his arrival he was greeted with a most sinister occurance…he could identify not a fish in sight! More to his amazement was the sheer volume of Frog spawn.
To cut a long story short, the spawn produced a phalanx of Frogs. To liberate his beloved Rainbow Trout from the scourge of the Frog, he acquired many boxes. In these boxes, he carefully gathered up all the Frogs he could find and firmly closed the lid. In a frenzy of panic, the now captured amphibious creatures leapt within their recycled prison cells in a feeble attempt to escape.
So there you have it, put a some frogs in a box and they’ll go mad.
Mad as a box of frogs.