when I was a kid, my dad borrowed some telco gear from an acquaintance and the two of us set up a tiny POTS CO routing phone calls between the rooms of our house so I would be able to see how the phone system worked.
dad would have dug y'all.
As a teenager, I got to be heavily involved in building my own bedroom when my parents bought a house for the first time in my life. We couldn't have gotten hold of real telco equipment, but I used an electronics prototyping board in my bedroom closet to wire together the house's phone jacks. The one thing I always wished I had was a professional punch-down block. #geek 😅