It is probably referring to the coal mine canaries that would die before you did: http://en.wikipedia.org/wiki/Domestic_Canary#Miner.27s_canary http://en.wikipe

It is probably referring to the coal mine canaries that would die before you did: http://en.wikipedia.org/wiki/Domestic_Canary#Miner.27s_canary http://en.wikipedia.org/wiki/Domestic_Canary#Miner.27s_canar...