(At an unnamed facility overlooking a mining operation, one of the more physically active gestalts have caught your eye - Recently, you've seen them begin putting on weight at the chest area, yet they haven't done anything to their diet. So, with the permission of those higher than you, you investigate)

Hidden within their closet, filled with the normal male uniforms they wear, you watch them enter the room

"Maaan! Really got the work in today!"

They yawn as they shuffle over to their desk and... remove a section of the wall, revealing a small compartment with a box - Retrieving that box, they pull out a vial and a syringe, drawing liquid from the vial before taking a deep breath and injecting their forearm with it

They glance over at their mirror and chuckle, flexing their biceps in front of it

"One of these days!"

They sigh before heading over to their bed and flopping onto it, hugging a pillow tightly