...which begs the question: which would you rather do? Try to vacuum out an eye, or have a fight with a grizzly? This is important - at any point, any of us might have to make that choice.
By the way, I love this idea of having a 'fight' with a rat. The idea of seeing a guy writhing and wrestling about on the ground with a rat, "GRRAAAAARRRGGGH!" More so that some people thought they'd lose that fight.
If it was a R.O.U.S., Rodent of Unusual Size, you’d lose. But moreover, I don’t think they exist.