I thought I had a small heart. I thought I had a significantly higher tolerance than most people for disturbing events. Most of the things that make people cry don’t bother me. I thought I was invincible.
I thought I could euthanize a house mouse. I read that carbon dioxide poisoning was quick and painless. It’s how labs kill laboratory mice. I thought I could do the job like a scientist might. I thought I could kill a mouse gracefully and emotionlessly. I thought it would be easy.
It was easy. I transferred the mouse to a plastic food tub. It was transparent so I could check on the mouse’s conditions without opening the container. I poked a hole in the base, and I poked more holes in the lid. I used saran wrap to ensure an airtight seal between the lid and the container. I flipped the container upside down. The carbon dioxide would enter through the lid, and the excess air would vent through the hole I poked in the base. This container would sit on top of a bowl of vinegar. After I added the baking soda, I quickly sealed the bowl and the container together. My hands were shaking the whole time.
The reaction was too quick. Bubbles were coming up through the holes. I quickly gripped the bowl and container together in case the reaction broke the seal. I could see the mouse panicking, and running away from the bubbles. After a few seconds, I knew there was no more air left in the container. Only carbon dioxide. I sealed the vent, and gripped the container again. I gripped it hard, and I didn’t let go, even though I wanted to. I watched the mouse stand on its hind legs while it gasped for air. It took only two deep breaths before it fell on its side. Its eyes were half closed, but it was not dead. I watched as its belly moved up and down. Half a second passed, and it stopped moving. I stopped breathing. Its eyes were half open. I never closed mine.
I watched it die. I started breathing again. Deep, slow breaths. And then the tears came.
We’ve all killed an animal at some point. A few fish, maybe, but probably on accident. Insects and bugs, always on purpose. My brother and I used to torture them to death. We tortured other things, too. When our babysitter came home with a live crab, we’d kill it for her so she could boil it without getting pinched. We didn’t always kill it completely, because we were actually torturing it for fun. When it stopped moving, it wasn’t fun anymore.
The mouse wasn’t moving. It died in seconds. It was a quick death, but was it painless? I don’t know. Its eyes were half open.
I’ve never cried for an animal before. I’ve never cried for the animals I’ve tortured, or any pets I’ve lost. I did not cry for Cleo when an owl snatched her up and killed her. I did not cry for Joe, who was my favorite cat, when he died of old age. I did not cry for Manu because I didn’t notice he was dead. But I cried for this vermin, who I spent one night with. It’s dead now, because I killed it.
I thought I was invincible. But I killed a house mouse. I killed a small rodent. I killed a fellow mammal. And I cried. I am not invincible.