its lucky for their adversary then, just because its highly strung doesn't mean it can't be hard too. Its similar to the grasshopper mouses but instead of howling it crushes its victims skulls. It takes on scorpions and snakes and snakes are about 10 times bigger than it. How is that not worthy...
The shrew is ranked higher here than the sun bear and salt water croc:
http://listverse.com/2013/06/27/10-most-downright-ferocious-or-ill-tempered-animals/
The shrew crushes its opponents skulls instead of merely using venom. It could use the venom but goes for the nasty route because its mental. Its what the competition is all about