Lmao. This thread is seriouslly funny. There really is a guidline of accepted practices to humanely killing a rat? I mean come on. The most humane way of killing anything is sudden death. Quick painless done. The needle they stick a dog with to put it down hurts more then sudden death. Drowning a rat? So your not worried about the amount of water it swallows and fills in its lungs then having to defrost that? Not to mention the added drainage and mess during defrost. Setting up a gas chamber or screw around with dry ice etc. Really? Just smack the friggin thing on the head and be done with it. Quick, sudden, bam, done. But i do love when a thread spirals out of control so i cant wait for ideas of tiny electric chairs or kevorkians death machine