No bun? ... My grandfather who lived into his late eighties used to eat a raw hotdog from the fridge as a late-night snack and wash it down with Kentucky Gentleman Bourbon.
Am on the Atkins diet when can get the meat ... No carbohydrates after noon time. Am lying about the Atkins diet, but I love hot dogs and mustard. Grandfathers are special persons. You were fortunate to have known your Grandfather. I hope you were fortunate enough to have known both of your Grandfathers. Never met either of my Grandfathers. I miss that not having occurred (meeting my Grandfathers). Someday it will happen, am confident.