1) It takes nearly 1/2 of a full can of Lysol Disinfectant Spray to kill a spider that is hanging out on the door to your office.
2) Lysol has a spraying distance of about 2 feet, meaning that you'll have to get closer to said spider than you prefer due to your total arachnophobia. You are, however, still further away than if you were to try and smash it with some sort of object, making it less effective as a spider killing tool but a handy backup plan.
3) It takes another 1/4 of a can of Lysol Disinfectant Spray to feel as though the spider is really, actually, truly, very much dead after it falls to the floor and you discover that the little red marking you noticed earlier is shaped like an hourglass and OH MY GOSH THAT IS A BLACK WIDOW KILL IT KILL IT KILL IT!
4) It is possible to get slightly extremely pretty much high heady from an excessive amount of Lysol sprayed into a small entryway. On the plus side, you can use this as an excuse for your erractic behavior on the phone with the exterminator after you've called him screeching OH MY GOSH THAT IS IS BLACK WIDOW KILL IT KILL IT KILL IT!
5) Lysol smells a little more pleasant than the typical bug killing spray, which I would have used had there been any available to me. Note to self: Buy spider killing spray right after you hang up with the exterminator.
6) People are definitely going to think that you are trying to cover something up upon entering said entryway. Probably for the next two weeks. Apparently, the scent of Lysol is one that lingers.
I'm pretty proud of myself for conquering my enemy, although truly my choices were to either kill the giant man-eating spider or risk it moving and being forced to spend the rest of the day wondering about the whereabouts of said spider.
Full disclosure: I admit to going out the back office door and seeing if the neighbor was home to ask him if he would kill the spider for me prior to engaging in such an epic battle. You may feel free to refer to me as William Wallace from this point on.