Was military, although "not fired"...there's the realization that comes across a members face when they know they fucked up big time. I was an aviation mechanic on electrical systems. I sent a technician with a stigma for being less capable than others, out to perform a routine job of replacing two items. Wanting to show that I'm not a babysitter and give him a little boost of confidence, I told him to get a head start. After 20 minutes, I went to the aircraft and found him struggling with an easy component held on by four screws and two plugs. I guided him through the next few steps and gave him his space. After another 20 minutes, he came in happy as could be and started on the paperwork. He handed me a pen for me to cover the inspector signature. I told him, c'mon .... smith, you know I'm going to go look at it. I set out to the aircraft. when I within 20 yards, another team already trying to have a conversation with me asked "hey, is ... smith coming back to hook this shit up?" and I can see from 30+ feet away that the cables to what he was working on were just dangling below the console. I returned inside and checked the aircraft forms. He had signed off the work as complete and that the system worked as advertised. I asked if the system worked and it all checked good, he gave me a glance like it was a trick question before sheepishly answering with a downward nod that it was. I had him follow me out to the bird. When we were about 30' away again he noticed what I did and began mumbling under his breath about how he's never going to get this, and he keeps fucking up. He and I stayed out there until it was fully installed and verified that all aspects checked good. He received paperwork, which was the final blow to his career and we moved on a little stronger without him.