I am not really a poster of images, but I thought I had to share this story.
Someone asked me to take a corporate headshot of them and said that I had to do it on-site at their small office since they were busy, which was fine. This told me I needed to use my speedlight kit instead of strobes.
I got there on the day about half in hour in advance to set up at the small office. I was told I had to use a conference room so as to not be too distracting to the other employees. The conference room was about 10' x 16', but had a long, heavy conference table in the middle and chairs around it, a large TV and some other video conferencing equipment. There were two doors, one on each of the shorter 10' width sides.
I locked one of the doors with the push knob for safety to prevent persons from walking into the setup, and popped open my reversible Impact black/white foldable backdrop on the black side and used the case it came with to place on the conference table so that I could put my lightstand on it and not scuff the table. This was my main light and I used a 60" white umbrella in reflective mode high up touching the roof (which was 10' high) and pointing down at about 45 degrees. This light was about 5' from the subject.
My second light was another speedlight with a grid on it in the back left corner of the room behind where I would place my subject. I had to get the stand to fit as tightly as I could in the corner so I used a reversible stand that had a very small footprint. This light was 6' from the subject.
I planned to use the cream conference table as a reflector and used my light meter to test the lights. The back light was set on 1/32 power and the main light was 1/8 power.
When I was done, I called in the client in and he stood where I placed him. He seemed pretty stoic and I had some brief small talk to put him at ease and while talking to him, I guided him into a basic pose, managed to squeeze a smile out of him and fired two frames and showed him to see if he was ok with it. He took one look, said he was good, then unlocked the door behind him, walked out and was gone.
If it wasn't for proper planning and testing the lights beforehand; if I waited to take a photo, then check the screen, make adjustments and then keep doing that like most persons would have done, I would have been in big trouble. Here is the image, almost straight out of camera, along with a diagram I did in MS paint as the lighting set up.