There's proper dirty food which should indeed be relished. Who hasn't made a brown sauce sandwich out of two potato waffles? And if you're a (a) student, (b) drunk, and (c) in Scotland, there's little that can taste has heavenly as a kebab pizza. Yes, it's the meat from the animals God didn't get around to completing and no, you can't eat it sober for breakfast the same day (unless you are from Stirling, in which case all bets are off).
7-11 is just sad though. It's the food of howling desolation. Processed meat food items that roll into infinity only occasionally pausing to shed a pearly tear of saturated trans fat. Tanker-size vats of concentrated high fructose corn syrup. You could just pay a man to repeatedly thump you in the pancreas to achieve the same effect.
Reminds me, I ate a Pizza Hut pizza at the weekend. I'm not sure why, it seemed like a good idea at the time as we were passing the takeaway at a benighted hour and couldn't be bothered cooking when we got home. We weren't expecting much and it failed to deliver even on that. It didn't even taste like pizza. It didn't, to be honest, taste like anything beyond stodge. Stodgy base (thin crust, fat lie), stodgy chewy cheese that might have actually been some kind of plastic, and a miserly collection of other indifferent toppings. It was a bad symphony of unpleasant textures. I'd like to say the sides improved matters, but if you like soggy potato wedges that taste like wet flour and something that might have been the deep-fried existential despair of a battery chicken staring into the void, you'd have been in heaven. It was a meal that comprised entirely of slightly different kinds of chewing.
How does such a place even exist is beyond me. We did the pizza thing elsewhere, but it's such a simple thing to make, and few things taste as good, so how the holy flying fuck can they make something so awful out of a simple concept? And why are people buying it over and over? Isn't once every thirty years too many times?