To editors like this, it doesn't matter much what kind of interpretation is assigned to point #2: the TAB character in a file could be interpreted as being mod-2 columns, mod-4 columns, or mod-8 columns.
About 8, 9, 10 weeks. After about 8, 9, 10 weeks of age, or when the puppy arrives at it's new home, the dog should be taught to go potty outside. Do not have paper or potty pads inside your home. Peeing is for outside only, or you are teaching your new pup it is okay to potty inside your home.
Many people (rightfully) boast when their puppy is potty-trained at 3 months old. It can be done with excellent timing and communication. Very few of those people, however, have small dogs, especially tiny chihuahua mixes and toy breeds.