"Well obviously I was going to let go when the creatures..." Guppy starts to say, but is interrupted by the... things.

He doesn't try to tackle them actually on the stairs; instead he waits for them to get to the bottom and makes a ferocious noise like a lion roaring at them. He then charges, leaps and stabs the first one through the back with his railing as he comes down.

"You're scheduled for surgery." he snarls at the scary thing.