Weird thing that just occured with my landline?

Sometimes we have what is called a foreign drop. It's when the line is connected to a house that has no phone service and was never removed. When someone else is.connected or repaired in the same neighborhood sometimes we need to use the line in the main cable that was used for the other residence. Unbeknownst to the technician the lime is still connected.to another residence two doors down and this results in the same dial tone connected to.two houses. Makes for an interesting set of circumstances. One ladys line was accidently connected om the same line as the fax line at her work which was a block away. Her employees discovered this and listened to her personal calls from home. They listened to her talk smack about everyone she worked with for like three months and them one day was confronted by it lol.