How can insinuating something be more effective than accusing someone of something? *Definition of insinuating:1. To introduce or otherwise convey (a thought, for example) gradually and insidiously.2. To introduce or insert by subtle and artful means.*

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.   

The good old common cold

That isn't a question