https://www.cheatsheet.com/entertainment/3-everybody-loves-raymond-mysteries-that-make-absolutely-no-sense.html/

Over nine seasons, fans laughed, cried, and cringed along with the Barone family on 'Everybody Loves Raymond.' That doesn't mean the show was perfect, though. Three elements still make no sense to us.

The matter of Frank and Marie periodically coming through the back door reminds me of an uncle that I used to have. He would walk through the front yard and the back whenever he came to my house as if he was checking to make sure that everything was okay. I wouldn't be surprised if Frank and Marie did that with Ray's house.

God bless you always!!!

Holly