Running On Empty Adult Merit Badge
You can certainly be "out of gas" in more ways than one. The obvious one is to literally run out of gas in a vehicle you were operating. A slight variation may be if you have a habit of operating your vehicle with the fuel gauge as close to "E" as you possibly can (you know who you are)! If you are physically or emotionally on "E" - as in Exhausted, that counts too.
Oh, there's also the "mentally running on empty" version, meaning you are several fries short of a Happy Meal or a few bricks short of a load. You get the picture.
Remember, you can award this Adult Merit Badge to someone you think qualifies - as well as earning it yourself!