Yesterday was my triennial visit to the blood donation center. I just learned that word and I’m proud of it. It actually means every four months, not every three years, but “quadrennial” sounds like a made-up word and “triennial” sounds like I read something once.

The place is full of the heavily pierced and tattooed, all of us there to hand over a pint for the greater good. There’s nothing sneaky about it. Somebody out there needs blood, and in exchange, the center offers free air conditioning and snacks, which is honestly a better deal than most gyms.

I watched the self-recorded video of my visit afterward, the way you’d review game film if the game were “old man talks for ninety minutes while a machine drains him.” My conclusion: they don’t invite me back because they enjoy my company. They invite me back because I do the double red donation, and they’ve decided my blood is worth the price of listening to me.

The initial screener was the same woman from last time. I’m fairly sure we talked hockey during that visit. This time she engaged with me, but not overly, the way you’d engage with a dog that keeps bringing you the same tennis ball. I think she clocked pretty quickly that I was just a lonely old guy who’d talk the leg off anyone who made eye contact.

My blood pressure ran a little high. I blamed needle anxiety, which is a generous way of describing a lifelong hobby of mine. I also may have stretched the truth slightly on the questionnaire. If I’d mentioned our recent trip, I’d have had to list every country, in order, with exact dates in each one, and there was no chance of that. Naming them out of order and guessing at the timeline would have exposed the true state of my memory, and honestly I felt I was sparing both of us the paperwork. I hadn’t done anything else on the naughty list, so skipping the travel questions felt like the fastest route to the gurney.

Which brings me to the business end of the donor center, and my technician, who I’d also worked with before. She started off friendly. Then I kept talking, and I watched recognition arrive on her face like a slow-loading webpage. She survived the appointment. I think it cost her something.

I probably didn’t help my case by opening with “I’m your next victim.” Then I called myself a secret shopper, which didn’t confuse her so much as make her wonder if her performance that day was being quietly graded. It wasn’t. I just like watching people recalculate.

They hand you a squeeze ball while you donate, and mine came shaped like a basketball. I told her I’d have preferred a football. Turns out she agreed. “The Norman donor center gets footballs,” she said. “They have a budget for that. We just take what we’re given.” She’d made peace with it, in the way people make peace with things they complain about constantly.

For reasons known only to the blood-donation industrial complex, technicians aren’t allowed to let you watch the monitor to see what’s actually happening in your arm. Instead, there are little spinning knobs that mean things, sort of, if you squint. Double red donation is basically alchemy anyway, since what goes back into you isn’t what came out. My tech tried to walk me through which knob spins during a withdrawal and which one spins during a return. You squeeze the ball on the withdrawal, not the return, a fact I nearly learned the hard way. We got it sorted before I blew a vein, which I’m choosing to call a win.

I think I ended on a decent note. When the machine gave its final beep, I announced, “I survived another one,” and got an actual smile out of her. We never quite bonded, but I’m already workshopping better material for next time. This is apparently what passes for a hobby now.

So why do I keep doing this? There isn’t one clean answer, and not every part of the experience is the center throwing confetti and begging me to come back in sixteen weeks. But you don’t donate blood out of boredom either.

The t-shirts help. I get a new one every time, and while not all of them are “wow,” a couple have earned a permanent spot in my drawer. The latest one connects blood donation to the dog days of summer somehow. I’m apparently in my t-shirt era, though at this point I think every era of my life has just been a t-shirt era. Congratulations to me, I’m now a t-shirt connoisseur.

My cholesterol has also never been an issue, and giving blood is a nice reminder that I did pass along at least one good gene. When my kids bring up whatever genetic flaws they inherited, I remind them, “If your cholesterol’s fine, that’s me. You didn’t lose the whole lottery.”

On my way out, the front desk person, who must have missed my check-in while on break, sent me off with, “Thanks for your help on that double.” I have no idea if she actually knew that or just says it to everyone, but either way, I fell for it completely. I didn’t book my next appointment, but I’ll probably be back before Christmas to keep the friendship going, see what jokes show up on their own, and hope I don’t lose an entire vacation to “amnesia” again.