I have a startle response that won’t quit. If I could pair my startle response with actual athletic ability, there’s not a tiger in this world that could catch me. Unfortunately for my sense of pride, the things that startle me are rarely dangerous. Some of them aren’t even animate. That famous fight-or-flight reaction is evolutionarily helpful, but I have shrieked at furniture I wasn’t expecting.

Or a three-pound bird. In most circumstances, I think I could hold my own against a three-pound bird, but not a sudden three-pound bird. It was my brother David’s fault. He was introducing me to birding and it had been a fine day—the day I saw my first western tanager. I had absolutely no idea they even made birds like that. But David had binoculars and he showed it to me. All these years, for lack of binoculars, I had been thinking birds were brown and indistinct.

So I was already plenty juiced up when David spotted a blue grouse in full courtship mode. At that distance I couldn’t tell it from an eye floater. We were sitting on the ground and he got the bird in focus and handed me the binoculars, and there he by-God was, Mr. Fancy Pants Grousemeister, strutting his impressive stuff! He fanned out his tail and waggled his golden Groucho eyebrows and inflated his bright red sex pontoons and the boy was cooking. This was amazing. He turned one way, he turned the other way, and then he turned right at me and charged, whereupon I executed a complete backwards somersault and paddled away in the dirt while my brother laughed till he choked.

I suppose, given that my three-pound bird was still a couple hundred feet away, it might have looked like a comical overreaction, but in good binoculars that sucker looked like a tyrannosaur. For Christmas that year I made my brother a full-scale papier-mâché sculpture of a charging malevolent grouse to remind him of the basic soundness of my reaction. That bird was so terrifying they had to change its name to Dusky Grouse just so people could lose their negative associations. I’d show you a picture of my sculpture but a dog ate it.

No, really. A dog ate it.

In my defense, I submit that if we hadn’t evolved to run away from tyrannosaurs, we wouldn’t even be here today. Strictly speaking, we didn’t, but my inner Purgatorius begs to differ. Purgatorius is our first primate and coexisted with the dinosaurs, and I feel certain, on a molecular level, that it had a grade-A startle response.

Anyway, my own is alive and well, and I can only hope it’s keeping my heart muscle in shape. Already I’m leery of driving at night because of all the phantoms out there that seem to require sudden evasive action that nobody else on the road appreciates. I have to think it serves me well. Or I did, until last week.

That would be the week I decided to investigate the huge squash vine that volunteered in my flower garden. By the time it edged into my radar, it was twenty feet long and had leaves the size of vinyl records. The blossoms alone could have subbed for the “His Master’s Voice” gramophone on the RCA Victor label. Any of the squashes I’d grown or eaten might have contributed a stray seed. For some reason I concluded this was one of those squashes, likely a butternut or an acorn, and it had lucked onto a particularly rich patch of soil. I started at the beginning of the vine and carefully swept aside leaf after leaf looking for the end product, but it appeared most of the flowers had shriveled shy of their destiny. Until I got to the very end and lifted one last leaf and there, right there, was a gigantic freaking pumpkin and I screamed like a little girl.

Sure, I’m familiar with pumpkins, but I’d never seen one on the hoof like that. In my defense, those things can get really large. And unexpected. And don’t think you couldn’t be sliced out of the gene pool by a thousand-pound pumpkin. If it landed on you, say. Or if you ate it. The requisite whipped cream alone would do you in.