I'm not sure why you believe every CO detector should be dispensed, that's crazy, well no worries.... And for the record, I think everyone should have them.....as for the pets....well they are along for the ride. They have no clue.
Good to see you are getting it, "from working and correctly placed", now you are listening. You have no clue as to what they had presented to them in this event...... so why the troll.....sorry, you are Puzzle...Troll King...let's wait for the coroner report...:)