A lot of us think “my parents just don’t understand” and it’s true—our parents don’t understand a lot of things of our generation. Lady Gaga probably looks like an escaped patient from a mental institution and they wonder why we keep adding colons and parentheses at the end of our text messages. But, there are some things that are timeless, and if your parents try to instill one of these little gems in you, let them:

No matter how much time you already spend together, no matter how many nights you stay at his house and no matter how many of your clothes are already in his drawers, you will never know what it’s truly like to live with someone until you live with someone. Here is what to expect: