It’s always great to have friends over, so you want them to know they are welcome and can come in. At some point though, you get fed up with them and it looks like they can’t read your body language as to go away. That’s why you need a doormat like this. You just shove them to the door. If they can’t read your body language, they’ll just have to read the doormat. Looking at the doormat from one side reads “Come in”. When rotated 180 degrees, it reads “Go away”.
Check it out