Or a geek with a bad memory....
That's why it's actually tattooed in mirror image.
It was inspired by an older friend back in the '80s, who had the lift equation tattooed on his arm. Turns out this was a "thing" for aerodynamicists. Dana nailed what the equation is; the rocket ship is from the mission patch for a program where I was Systems Engineering lead.
The experience was kind of a surprise. I expected a dark, smoky dive with a bunch of characters from "Clutch Cargo." Instead, the parlor was bright and airy, in a former bank, trimmed in chrome and brass like an upscale restaurant. The staff was mostly young, tattooed, of course. My guy used the name "Toxic."
Did it in two parts, the equation first, then a month later, the rocket. Did it that way because, basically, I didn't know how I was going to react. Figured I'd at least have the equation.
Each session was 45 minutes. Pain was trivial; was tense until the first couple of pokes, then completely relaxed. Apparently, the discomfort builds over time; a friend with "sleeves" on both arms says six hours at a stretch is about as much as he can stand.
No infection or post-tattoo irritation; was just a bit red for a day or two. The parlor recommended a skin-care regime using over-the-counter treatment, that seemed to go take care of everything.
I had it done on my upper arm so that it'd only be visible when I pulled up a short sleeve or went swimming. I kind of regret that, now...would like to "show it off" more often. For the first time in my life, I bought tank tops so I could occasionally show it off in normal life. One has the Space Force logo, the other has an NRO mission patch (not any mission I was involved in, though).
I do get asked if I'm going to have another spacecraft put on my other arm. I answer, "I already have one," and pull up my sleeve to show a blank arm. I then tell them, "It's a Klingon Bird of Prey."
Actually, recently I have thought of another design I'd like to add. A skull with two satellites orbiting around it, and the caption, "Death before Deorbit".....
Ron Wanttaja