[rednesss]

"They're the nicest, sweetest animals I've ever worked with — they look frightening, but they're very gentle," said neurobiologist Thomas Park at the University of Illinois at Chicago"

And then we injected them with acid.

[Fire_on_High]

I’m not huge on seeing any gentle creature hurt but let’s be realistic...they used acid at about the strength of lemon juice, according to the article. It’s enough to get a reaction without being outright torture for the lil guys. Having a rat’s paw sting momentarily is well worth the possibility of better medical care for humans.