I live in Arnold, California where the roads are snowy and icy from Dec to April. What's better for safe driving (Honda Pilot front wheel drive), aggressive snow tires or metal-studded tires?
It's pretty simple. Unplug the computer when your're building it. Don't touch anything that is not meant to be touched (gold contacts, lenses, the printed circuit boards, etc). Try to hold your expansion cards by the metallic ends. Take note of where you're plugging power cables, if they're in the right places and so on. Always screw in your hard drives to their mounts securely and for god's sake, don't move hard drives around when they're spinning. Static bands are more of an accessory than a tool. You don't need a static band as long as you remember to discharge yourself regularly by touching anything metallic, whether it's a doorknob, chair leg, the PC's metallic chassis, whatever.
It's certainly possible for an _active_ device to detect the laser and emit a programmed beep or something. But I suspect that's not what you mean. Lasers are generally of quite low power (at least those used in consumer electronics). More powerful ones can certainly make sounds when they hit something (or even self-focus in the air, which can heat the air enough to form a plasma this can emit popping sounds), as the material gets a hole burnt in it, or flexes.There may be photo-sensitive materials which bend when exposed to a bright light; short of getting a laser with enough power to ionize air, I can't think of another mechanism for sound-production when a lower-power laser hits a surface.
