Actually yeah, come to think of it I sometimes put Sriacha or whatever its called on hot dogs. Hot Dogs are versitale that way. Mustard can go on everything and is more useful as an ingredient (outside of meatloaf as mentioned of course)The only thing I really use it on is fries and hotdogs and even then not that often. Mustard is a lot better for most things and you can really elevate a hotdog with what you put on it.
EDIT: CONDOMENT AUTISM LETS GOOOOOOOOOOOOOOO