“The specter of an intelligent mouse stuck in a laboratory somewhere screaming ‘I want to get out’ would be very troubling to people.”

The pain you cannot express in human ways apparently doesn't exist. Screams in basement darkness upset no one, because no one hears them.

And wow,  foozzzball wrote stories about this almost a decade ago.

Yeah, I gotta admit that is legitimately scary to think about. I'd rather not see the results of something like that. Life is starting to feel like a scifi movie

Especially considering the conditions these animals already live in