A few questions:
A) Why do they eastern states use a single slice of bread?
Bread is used in pairs (for s sandwich) or singly for a single layer of something spreadable. It is a poor choice for holding a round long thing.
A Bread Rolls (Hot dog style) only purpose... is to hold a round long thing.
Like most things at Bunnings... and most people who use things from Bunnings... you're using a tool not designed for the job.
Do they Eastern Staters use hammers to put in screws? Like sure it works... but its not the tool for the job.
B) Why are you buying it on the way in?
The only way I can keep my rugrats in line is the promise of a Sausage in a Bun if they don't run anyone over with the tiny little trolley that they race each other with.
And surely the correct time to eat it is on the way out so you eat it in car while driving with your knees and getting the Apprentice/Wife/Kid to change gears for you.
I have on occasion bought "Sausage in a Bun" for family lunch when out and about... as in used Bunnings as a drive through fast food outlet - where else can you feed a family of 4 for $10?