...you know who you are! Over breakfast today at the workplace, I again discovered that most people in New England have no idea why you'd want a bagel with cold butter on it. I discovered as I was talking to a fellow Jersey expatriot that it is a NJ area thing. We grew up on hard rolls (kaiser bun, bulkie roll) with butter, with many meals (or as a meal).
I would love someone to explain to me what the history of the hard roll with butter is, if you know it, please post! Meanwhile I found a humorous link on wiki highlighting the Cuisine of NJ, listing one of the dishes as a hard roll with butter. Here's another passionate blog post extolling the virtues of this sweet treat, calling it sacred.
Next time you find yourself in Jersey, do me a favor and pick one up somewhere. I promise, you'll enjoy it.