[stemlord]

1. Not tipping in the aforementioned scenario is so far away from qualifying as "fucking with" anyone

2. Not only would spitting in food get you fired but it's also a crime. Do you really think it's common for people to be this reckless with their livelihood?

[harshalizee]

It's a restaurant. If high flying executives with great careers can commit crimes to make a extra buck, the person flipping your burger isn't going to be much more pragmatic.