i have some MASSIVE ones in my house....i found one under my mattress and i swear to god he looked at me as if to say 'what?'!!!!!!!!
dont want to get too naturalist or buddhist but if you kill a spider you do actually have a pyschological issue and should get help; they do no harm, they actually deserve there bit of mother earth far more than any greedy breeding human.
were the intelligent ones, there a natural creature living in balance. yes they get in the way but.....il happily let one the size of a fist run up and down the side of my bed if i cant be arsed to catch it....but if i see a cat crapping in my garden il shoot the little fucker! just cos some kid wants a a fluffy barely domesticated animal whos trying to claim my garden as its teritory...i think not!
its not opinion; spiders do a job, cats dont. theres not enough spiders and theres not enough bees (if the bees die out so does ALL life on earth within three years)...if i shoot all the cats....er....we have more birds!!!!
if its not making a web leave it alone...youv got thousands of them living in the wall and under the floor (some of them older than your house!!! so dont think they dont belong there!!!) and if it comes out for a look around it will go back. if it makes a web brush the web away, the spider will move on after youv destroyed the web a few times....
ps i dont 'like' spiders, would never pick one up, i just respect there right to be here, there harmless. if i kill a spider i feel just as bad as running a bird over