The way I look at it, you just have to choose between POSSIBLE, though IMPROBABLE, and IMPOSSIBLE. It only takes a second to shut the genny and all other spark-ignition devices off. Takes a quarter hour or so to fuel up. Is it really that big of a chore?
I rarely run the refer or w/h when I'm moving anyway, so I don't worry about them. I hit the genny on/off switch while I'm getting up out of the seat, and it's off by the time I hit the concrete.
In my case, the gas filler neck, water heater, furnace, and refer vents are all within about 6 feet of each other, and the genny is on the other side and behind the driver.
Always remember, you're a unique individual - just like the other 7 billion people on the planet...