Sunday morning, Feb. 12, 2012 - duplicate of my FB post today....

Dan and I now have irrefutable evidence that a propane/carbon monoxide gas detector also detects methane. The alarm went off around 2:00 a.m.. Dan got up to turn it off. The detector is right at the foot of our bed near the floor. Meg was sleeping with her rear end pointed at the detector and had been busy producing good quality (i.e. concentrated) methane gas. The first time the detector went off early in our trip, of course in the middle of the night, Dan got up, ran outside, turned off the propane tanks to prevent our expiring in the night.....and so it goes!