If that was in the bedroom I wouldn't be going to bed. Can't sleep if I can see one in the room. We have some whoppers here but that is one helluva beastie.
When we were renovating the house and sleeping in the touring caravan on the back doorstep my daughter (grown up I might add) decided she would sleep on a mattress on the floor in what was going to be her new bedroom. I was asleep in the caravan (minus OH as he was working away) and at about midnight my phone rang and it was her screaming to open the caravan door as a monster of a spider had just run across the screen of her laptop. We don't get quite so many now but the cellar is a creepy place to visit!