Hi, I've spent some long hours trying to figure out a way to construct a = bicycle alarm that isn't subject to kids poking at it and having it go = off for fun, or just because someone bumped the bike by accident. I also want the alarm to either 1) hurt like hell, 2) hurt like hell, 3) = make a lot of noise that hurts like hell. I've had my bike stolen about 7 times already and I'm starting to get = sick of it, only once did the theives get caught, turned out they were = drugged out losers, at least they got sent to jail. My bike isn't exactly cheap, about $1100 (USD), so spending up to $60-70 = wouldn't be too unreasonable. The last time it got stolen I got really pissed off.=20 I left it outside the house for about 2-3 h before I noticed it was = gone, so I called the police etc. Later that night I was walking my dog and I found the bike (or what was = left of it) behind a building, maybe 50m from the house I live in, = completely slaughtered, not a _single_ screw was left in the bike. And they even cut(!) the frame (the only part left) in two just so they = could get the read wheel with them, it had one of those big U shaped = locks on it. My dad suggested strapping explosives to it, which isn't a bad idea if = it could be made 100% sure no inncent people got hurt or that it = wouldn't destroy the bike. Any ideas are greatly appriciated, Patrik -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.