My son-in-law has a serious spider phobia. I thought my daughter and I were bad enough,until she met him. He puts us in the shade. He actually starts hyper-ventilating if he sees one. They don't have to be particularly large either,ones that don't really bother me that much bring him out in a sweat. And to cap it all,when he was at work a couple of years ago,he thinks he was bitten by one. He felt a sharp,pricking sensation on his back. A minute later,a spider,not very big,dropped onto the floor and scuttled off. That evening,his skin felt sore on his back. On inspection,he found his back had 2 little 'pincer' type marks and was rather red. Of course,this just further compounded his fear and loathing of them!