When I was approx. 16 a palm-sized spider crawled up on my breast while I was (still half asleep) eating my cornflakes. I first didn't notice it because I was wearing a dark pullover. I suppose I noticed it when it started getting to my throat an touched my skin. Forget coffee and all of those energy drinks. Nothings wakes you up better than a 8-10 cm large, hairy spider crawling up to your head.
