smoke & carbonmonoxide detector
Beep Beep Beep Beep! Fire Fire Fire Fire! there is fire some where and our detector friend has found out and i rush over to my kitchen to see that my dog accidently put my socks in the microoven and burnt it, ahhhhhhh! nothing serious happened, but i was on time, nevermind that i cant use the socks. Anyway i made that story up and a smoke & carbonmonozide detector can be handy at this moment. Check this out -> http://www.woot.com/Forums/ViewPost.aspx?PostID=2781026