Rats in the house

There's a freaking rat in my house! I blame the floor holes. Freaking rat bastard came out of the living room and was going down the stairs to the kitchen. So we gave chase. Into a closet where the sneaky rat bastard eluded us and headed for rat heaven AKA the open rat holes in the kitchen and breakfast room subfloors. I freaking hate renovations and old houses. Hate hate hate hate hate hate...I'm off to have a breakdown.