My girlfriend always has a go at me because I like ketchup on ham when I have it in crusty cobs.
There are times when ketchup is acceptable and times when ketchup is nigh on MANDATORY. But there are things that are just a no-no.
My uncle (the same one that ketchup'd the steak...GRRR), for example, puts ketchup on top of steak pie... he even puts it on BOILED RICE. He ruins so much tasty grub with that sugary elixir.
Not a crime, but this annoys me - people that always state the category of food after the type. WE KNOW WHAT YOU'RE TALKING ABOUT, YOU DON'T NEED TO TELL US THE DISTINCT CATEGORY IT FITS INTO.
"I'm going to eat a Tuna-FISH sandwich."
"I'm going to drink a glass of Pepsi-COLA."
"I just at a Millionaire Shortbread-BISCUIT."
Throwing the pizza crusts away or not eating them - they are delicious.
People who are eating food and saying "This tastes like crap" and keep on eating it - WHY ARE YOU EATING SOMETHING YOU DO NOT LIKE??
Eating loudly. Instant turn-off. Oh, and my cousin used to eat butter, big mouthfuls from a spoon. I almost gag thinking about it...
People who order a coffee, only to reduce it to a milky, intensely sweet liquid by adding 5 sugars and loads of milk.
Oh, and going to a foreign country and eating chicken nuggets and chips, i.e. english food.
Or alternatively, if you want to stick to your roots, then in Asda, they ARE selling a mini tub of Strawberry Cheesecake B&J for £1.50 - 150ml.