If you actually compare the two, they are nothing alike. Cucumbers are bumpy with a smooth, plastic-like skin. Zucchini don't have bumps but they are rough with these almost imperceptible coarse little hairs, like some guy with a five o'clock shadow. Cause, you know, I'd hate for you do to something embarrassing like CONFUSE the two of them.
So, now I had a bowl with half of a grated cucumber. And no zucchini. I turned the oven off that was preheating and rounded up the kids, mumbling about needing to buy a zucchini. Then John & I had a little lesson at the store about the differences between cucumber and zucchini. When you're a parent you don't want your children to make the same mistakes you've made. You know, you want to protect them from the pain and suffering of vegetable confusion. Also, let this be a warning if you are at my home: I might someday make a carrot cake with squash. Or a fruit tart with eggplant. **Eat at your own risk**
In case you are a complete moron like me* and need a refresher:
*sheesh. seriously, this makes me feel like a complete moron. you are welcome for making you feel better about yourself.