Yes and no - when I worked as a restaurant manager, we would often get special pricing when our suppliers had a glut - usually on things like seasonal fruit and veg, occasionally they would send a small amount of a new product for us to try, not something we could use on the regular menu, but could create a special with it (things like a new type of cheese, a different cut of meat). Occasionally there would be a mis-delivery by the supplier, sending either an incorrect substitution (e.g. haddock instead of cod) or simply they loaded someone else's box on our delivery (so we got a box of something we wouldn't normally carry - it cost more for the supplier to collect and redeliver the mistake so they would tell us to keep and use the item). Rarely, the person doing the order would screw up and make a typo (e.g. instead of 12 dozen eggs, they entered 21 dozen, or if the order was 1 box of 24 items as the unit, someone would enter'24' as the number, and we would get 24 boxes instead [thankfully with things like this our supplier would normally catch it as being really odd, and double check!] ) so we would have to be creative in using up the item.

I once had a supplier double my usual standing order of cauliflower, because he got it at such a good rate, and wanted to pass the savings on (but rather than just give me the order at the lower price, he sent more cauliflower). I sent one of the junior cooks to go and make a batch of cauliflower cheese that we could put as a veggie special - the cook had clearly never made or eaten cauliflower cheese, but had asked someone else the basics, and mistranslated. She made what I lovingly call 'pre-school glue' (flour and water gloop) with some incredibly mild cheese - it was completely and utterly inedible! So I had to teach her how to actually make it (I didn't normally cook there myself!) After the minor blip, that day's vegetarian special of cauliflower cheese was actually delicious and a good option to order, yes, I had a glut of cauliflowers to get rid of, but they were all in excellent condition, and it was decently priced for the customer.