My dog could sleep with a Heidelberg Speedmaster 40" 8 color sheetfed printing press, running wide open, about two yards away from him. That is a challenge, but, he made it look easy. They are different dogs when they report to work every day, and are surrounded by people, and their work, for a 40 hour shift, better dogs, I believe. He lived to be 15, was well behaved to everyone in the shop, and was the best hunter I've ever had, a good guard dog (too good, actually, but, that's a different story) and I turned down several offers to sell him.
At any rate, I don't own that dog, or have that job any longer. Such is life.
Best,
Ted