Any carpenters?

I was a concrete Foreman for many years. I had many challenges building massive walls. I'll try and describe a little bit of one of my favorites- it was to be an outdoor changing room for a poolhouse. It was about a 12-foot round circle about 12 foot high. It was 8 inch thick wall, formed. In order to form the curvature we would use one-quarter inch Masonite. We would stagger it and overlap it till we got three quarters of an inch thick. Not a work of rocket science. But still a bit of a challenge making a round room. both sides have to be formed exactly 8 inches away from each other and be able to hold the pressure of tons concrete. The real fun part was making the blackouts for the doorways and the windows. Of course they wanted them arched at the top. so now these 8-inch block outs for the windows and doors need to be arched and radiused. actually now that I remember this was pre-forman days and I was low man on the totem pole at this job and still no one but me would touch the stuff not even the owner. Needless to say after this I did become Foreman for another company. I also masterminded the design of there massive radius wall that went down around the back side of the property and retained the swimming pool. Looking back I was so Gravely underpaid...