An outstanding turn of phrase there.
Did you know that some spiders aid their movement by a process known as ballooning, which is to say they launch themselves laterally through the air from tall vegetation? I suppose if you live in an area with such spiders and have tall vegetation about it’s not unreasonable to assume that if you feel something lightly brush your noggin that a spider has just used you as a landing strip. I couldn’t though find any respectable literature that suggests they’ll immediately then make a beeline to crawl inside your ear.
Walking across our place in S.E. Colorado in the late summer and fall, we’ll see hundreds of tarantulas in an afternoon just wandering about. Commonly referred to as a “tarantula migration”, what I’ve read suggests they’re really just looking for a mate and not in fact trying to distance themselves from winter’s approach.
http://www.americanarachnology.org/JoA_free/JoA_v27_n2/arac_27_02_0503.pdf