Never get behind the wheel of a car if you are: tired taking drugs that make you sleepy sick all of the above

Tired, and taking drugs that make you sleepy, and it depends on what kind of sick you are if you are throwing up every 2 seconds it wouldn't be a good idea to drive but if you have like a common cold I don't see anything wrong with driving

You did not show us the image of the burger, but i shall try to answer as best i can.  when purchasing food, always consider the ingredients as well as the person who prepared it. consider if they were hygienic people or not, in case the burger was infected with bacteria. no mortal should place an infected burger into their mouth.