What is your spider infiltration rate?

[Josquius]

I have a large one just outside the door and a few small ones but its rare I see them indoors

[Ideologue]

Josq's comment leads me to wonder if your criteria for considering a spider potential harmful are less severe than mine.  Pretty much anything other than those pinhead-sized ones that keep to the corners (certainly if it's more than a centimeter), I sanction with extreme prejudice.

[Josquius]

The body bigger than a cm?
I don't think I've ever seen one that big in the wild, except perhaps those freaky green ones that I've seen in the countryside and want nothing to do with.

[Viking]

I remember in Australia we had 1.5 inch cockroaches running around the place. In Egypt there were actually 4 inch long cockroaches at the training well (and an adorable kitten that stalked them). And then there was the well site where the run-off ditch (A small ditch surrounding the well site set up to collect any spills to gather them in the waste water lagoon rather than pollute the farmland around) was covered in an inch deep layer of dead insects and the whole well-site smelled of death. Certainly I prefer the measly plague of mosquitos we get for a month in summer to that disgusting crap.

[Razgovory]

I live in a basement, so I see them all the time.  I don't really care much. 

[Ideologue]

The body bigger than a cm?
I don't think I've ever seen one that big in the wild, except perhaps those freaky green ones that I've seen in the countryside and want nothing to do with.

Legspan.  Cm-wide body would be a wide-awake nightmare.

[Admiral Yi]

The size threshold is if, after you smoosh them, you can still feel the heft through the kleenex you use to pick them up.

[Tamas]

Spiders freak me the fuck out. I eliminate them from my living space with extreme prejudice. Have yet to see any non-microscopic here urban land, luckily. In Hungary, being close to the countryside meant seeing some disgusting ones a few times a year, and annoying ones relatively often.

[Razgovory]

I didn't know so many people were afraid of spiders.

[Grinning_Colossus]

In the summer I see wolf spiders crawling across the ceiling about twice a week.

[Eddie Teach]

Some of them have strong enough poison to kill a human.

[Grinning_Colossus]

Wolf spiders are harmless. I just kill them because one dropped down on me when I was a child.

[Eddie Teach]

It was a reply to Raz. I did not make that post in under 10 seconds. 

[Ideologue]

Spiders freak me the fuck out. I eliminate them from my living space with extreme prejudice. Have yet to see any non-microscopic here urban land, luckily. In Hungary, being close to the countryside meant seeing some disgusting ones a few times a year, and annoying ones relatively often.

They are way worse in rural areas.

The worst one I ever saw was at Korea's dad's house.  Legitimate Arachnophobia comparisons could be made.  Looked about five inches legspan.  Ceiling walker.  I was spending the night; strongly considered driving home at 2 a.m., only did not do so at Korea's insistence.

[Razgovory]

Some of them have strong enough poison to kill a human.

Yeah, but most don't.  Also they are very small and I can outwit most of them.  Besides they kill the other bugs that crawl on my when I'm asleep.