I can't squish a spider or any bug for that matter because of the crunch factor.....so in our house we have a small vacuum that is used for that purpose..if any one sees a bug we say.... "WHERE'S THE BUG SUCKER???...there's probably a bug war going on in that bag... Sometimes I'm afraid they will crawl out.....my husband hates spiders also...so when he's in the garage & he spots one he will grab the shop vac...then he'll suck up rocks or oil dry after the spider to make sure the spider gets clobbered