By Tina Mitchell Spiders too often get a bad rap in mainstream Western culture. “They’re aggressive.” Unless you’re an insect, most try just to avoid you. “They want to bite you.” No, only if you give them no other choice but to defend themselves. And while spiders have fangs, many are not long enough to pierce your skin. “They’re dangerous.” Although all spiders have venom, only a few in Colorado (e.g., western or black widows) can deliver a bite that might require some medical attention. “They invade my house in late summer.” Actually, some species live outside of structures; others ...