I watched a fast food employee prepare a batch of fries today. After they filled a few boxes and lay them under the heat lamp, they walked over to the friers, grabbed some onion rings, walked back and put one in each fry box.
I used to think that happened by accident.
In this case, that one onion ring is either a gift from an odd employee or a taster, If the customer eats it and likes it they might very well order the more expensive onion rings next time. Sneaky, sneaky, sneaky.
I'm sure it also happens by accident, but... now I can't unsee what I saw. What other intentional accidents do people encounter?