Indeed. Placoid scales are a defining feature of Elasmobranchs.

There was a shawarma place I used to go to that had an interesting “garlic sauce”. You couldn’t call it toum, as it was either not whipped with oil or they stopped after adding a splash. It had the appearance of being just very finely chopped garlic, like somebody ran it through a food processor until it was almost a paste. And fuck, it was so good on their donair pizzas. We used to get a small tub to go with it, but after a slice of the pizza, a sip of beer would set your tongue on fire. And the next morning, shaving would make the bathroom smell like fresh garlic. Definitely too much, but oddly worthwhile from time to time.

Getting value for time is productivity. Up to you if value is in money or enjoyment. Your “logic” seems extreme. I’d have to have some irrational hatred for shopping before I’d spend even more on groceries to get someone else to do it. Similarly, I’d have to have some pretty strong feelings to love it so much I’d take a minimum wage job to do it in my spare time. I think the average person is going to fall firmly in the “if shopping for an extra 30 minutes saves me 20 dollars, I’m doing it” camp.

Dude, we all waste more than enough time on any given day that we don’t need to worry about the value of losing a half hour to save tens of dollars on our grocery bill. I can’t imagine anyone using a site like this one is particularly worried about lost productivity during their free time.

Seriously. Sale items are often several dollars cheaper per item. It is well worth the time and gas driving to several stores unless they are very far apart, then just roll that into another trip. Some big “what could it cost, 10 dollars?” vibes off that comment.

But coming up against a full grown 800 pound tuna with his 20 or 30 friends, you lose that battle, you lose that battle 9 times out of 10.

Canada used to do this, but then they switched to charging the disposal “eco” fee up front when you buy the product new. Everything from that point on has been free to dispose of. Any metal or electronics products are all saleable scrap though, so you can get paid for them if you take them to a metal recycler instead of the dump. A lot of places advertise free places to dump those products so they can take them in to sell. Some will even come pick them up for free as well. But if something doesn’t have an eco fee or isn’t otherwise valuable scrap or recyleable, you pay by weight to landfill it.