[adventureartist]

I hope you realize there are more rats in more restaurants and food factories than you think, and that health departments nationally, while quick to cite, fine, and demand changes to your pest control, really understand that rodent problems happen, and don't shut you down for a rat. Rat infestation... yes.

[timr]

In San Francisco, vermin is considered a "major violation", and requires immediate shutdown:

http://www.sfdph.org/dph/EH/Food/score/Violation.asp

[jlgreco]

There is no such thing as ”a rat", trust me.