just take the lettuce

So, I’m at the self-checkout at the grocery store, right, and there’s no label on my lettuce. And there’s no lettuce in the search for item bit, either. So, I’m thinking, do I just take the lettuce and run? I mean, I’ve scanned my other items, I’ll pay for those. It’s 75 cents. Are they going to notice if I just slide the lettuce into the bag? But I freaked out that I’d get in trouble so I chose tomatoes instead and weighed the lettuce but one lettuce is heavier than one tomato so I ended up paying $2.84 for a lettuce that should have cost me 75 cents. Morally, I think I probably did the right thing… But, like, logically? I’m such a dumbass, aren’t I?