The rules are as follows:
Someone makes a new topic everytime they have a new idea for a question, a statement or a sentence that will be answered in the thread.
If you want to continue the idea that someone posted, you have to quote their answer. If not, you have to give another answer by making a separate post.
I.E: Sentence is: When I'm not at home, my dog usually __ . Person A will answer: bla. Person B quotes and adds: "bla" ble. You are Person C and don't like that idea, so you make another post saying: bli - and hope that someone follows.
If you post an answer or continue one, you aren't allowed to post on someone else's answer.
I'm going to start with: It's like my grandpa used to say __