Italians say you are doing pasta all wrong

Italians are very passionate about their pasta, and they will not hesitate to tell you when you’re doing it wrong.  Things Italians will turn their nose up at if you do this with your pasta.
1.  Ketchup on pasta.
2.  Cutting pasta with a knife.  .
3.  Putting pasta in cold water, then boiling it.
4.  Boiling it in plain water without salting it.
5.  Putting oil in the water.
6.  Breaking dry spaghetti in half, so it fits in the pot.
7.  Having pasta as a side dish.
8.  Rinsing pasta after you cook it.
9.  Putting pasta on your plate, then sauce on top of it.
10.  Garlic bread with pasta.