If you don't have a dog then you don't know what's up. Some people do have a dog and those people do know what's up.

Source: Pixabay.com
If you are not one of those people though, then you do not know what's up because you don't have a dog.
If you don't have a dog then you don't know what's up. Some people do have a dog and those people do know what's up.

Source: Pixabay.com
If you are not one of those people though, then you do not know what's up because you don't have a dog.
I have a dog and shes the best thing that our family has ever had. You are right, "If you are not one of those people though, then you do not know what's up because you don't have a dog". People that don't have one just don't understand.
