[mothered]

By far, food services are the easiest to SE. Simply stating that the food tasted "weird and unnatural" is enough to get free coupons for the respective franchise.
If you need help, feel free to ask.

Also, shouldn't this be in the Social Engineering subforum @mothered ?

Yes, thread moved from the Lounge forum.

I certainly agree with consumable products being the easiest to SE. You'll find that on most packaging, there's a "customer satisfaction" (or some variant) whereby If you're not satisfied with the product, they will Issue a refund/replacement. They have In fact SEd themselves.