Yup. I can smell a cucumber being cut across the house. Finding out I can tell sushi places to leave out the cucumber has been amazing.

It's also in cantaloupe, honeydew, yellow squash, pumpkins to a greater or lesser degree, some acorn squash. Zucchini almost never has it and I love it lightly grilled. I've found it in homegrown zucchini before, but never in commercial.

I hate yellow squash even when well cooked but I think that has more to do with childhood, or maybe it has an additional something in it. I can strongly taste when other food has been cooked with squash. Can also smell that musty smell when it's being cut that is different from cucumber/watermelon.