"Positive side to our work..."

Hans is delighted that he has an interest in his work, and is sure that he will help his situation if possible.
“There is a positive side to the situation, gentlemen. First, we are getting rid of the enemies of the Reich. We supply cheap labour to many of our Reich factories, including producers of military hardware, which gives us an economic advantage over our enemies. Some of our inmates are used for medical experiments in the laboratory, which helps to advance German medical research. Our camp also includes a cinder track, where some of them run around in circles all day, testing the durability of shoe soles. It has the secondary advantage that many die from exhaustion, and if the heat doesn’t get them the extreme cold will. You can’t lose. You can see, gentlemen, that there is a positive side to our work.”
Colonel wishes to scream: Jesus Christ!
There’s a long silence and Hans notices that his comrades are gazing at him, as if they are hypnotized. He’s obviously impressed them and decides to show them some action photos, which he took in the camp after ‘Crystal Night’.
“Gentlemen, I must show you some photos of my work. These are enemies of the Reich that I have personally dispatched. I hope you find them interesting.”
The Colonel has just knocked back another extra large glass of cognac and wishes it was stronger. He takes the photos from Hans and gives some of them to Hermann, who is decidedly under the weather, and has almost emptied the cognac bottle.
“Thank you, Hans. Much appreciated.”
The photos are worse than he expected. The pictures of the hangings are taken at different stages of the process all the way to the victim’s death. Age or sex makes no difference. He feels dirty and sad, because he and many others did nothing to stop this happening. He can’t believe that this is being done in his name, and in the name of his fellow Germans. This monster has probably murdered some of his friends including Jewish ones.
He notices that Hermann is gone to the bathroom, probably to get sick, and he must get some fresh air, as he feels unwell. He’s nervous and afraid in this creature’s company, and does not want to upset him. He can see that the beast is loaded, and his face is lit up like a red traffic light. He gives the photos back to Hans.
“You are a diligent SS-man and a good photographer. I think we should go into the garden for some fresh air.”
Hans jumps to attention and almost takes the Colonel’s eye out, as he raises his right hand in the air, clicks his heels and screams
“Jawohl, SS Standartenführer. Heil Hitler!”