Ehh, you know, the usual stuff a mouse's gotta do: watch over spoiled test subjects, make sure said test subjects don't get into any major troubles, and keep them from dying.

[ He then lets out a huff and shakes his head. ]

But you bunch already messed up and got one killed! I mean, c'mon, test subjects aren't easy to find! At least it wasn't so messy to clean up after but sheeeeesh, you guys aren't making my job any easier.