@Susquatch said "I bet it's an oven inside one of those! But hey, there is a little boy hiding inside every old man someplace."
True story:
My Dad was a tank Commander during WWII. He didn't say a lot about the War until his later years. He did say that inside the tank was not the most comfortable place to be but better than a muddy ditch. The worst part was the stale air + the fumes from firing their gun (gunpowder smoke trapped inside). A Canadian tank Commander (Commander or Platoon Leader) was in charge of 4 tanks. Four Canadian tanks were considered to be a fair fight against one German tank. During battle, the Commander would usually have his head sticking out of the turret so he could direct the other 3 tanks that would be all closed up. Near the end of the War, his tank was hit and he was blown out of the turret like a champagne cork. They were retreating at the time. They couldn't carry out the bodies and only saved the wounded. He was left for dead with a broken back and was paralyzed. The next day when the Germans were collecting their wounded they pushed his body off the road and into a muddy ditch. He couldn't move but could hear & see them and he knew a bit of German. One German said, "he isn't stiff" (no rigor mortis). The other German said "so shoot him" and the guy shot my Dad twice (he apparently wasn't a very good shot). The next day the Germans retreated and the battle lines changed again. The Canadians were collecting bodies on a wagon. They noticed he wasn't stiff so they threw him in the back of the Jeep instead of onto the wagon. They still didn't think he was alive.
Anyhow - after being patched up and sent home, he spent many months recovering at Sunnybrook (Toronto). He always had a sore back but that never stopped him from leading a normal life and a successful career. Throughout his life, it was a regular occurrence for a piece of shrapnel to work its way out and break through his skin like a large sliver. I was visiting when my Mother pulled a piece out of his back when he was 90 and still living at home. He passed peacefully at 92.
CW