When we first started out on our travels in the RV we were woken in the wee small hours by our gas alarm going off. I got up and checked the cooker, couldn't find anything wrong, so calmed the dog and went back to bed.
Then the alarm went off again. This time I found the cause.
Janna, our Golden Retriever, being frightened of her new lifestyle, had come into the bedroom to sleep near us. She'd curled up on the floor in the corner, with her bum resting against the gas detector.
So it didn't take too long to figure out the source of the gas emissions! Still, at least we know our alarm works. . .
Janna is available for hire as an alarm tester should anyone need this service