Sick as a Fog is the second segment of episode two in Tom and Jerry Works, airing on Cartoon Network in August 11, 1999, and on The WB in April 30, 1999.
Jerry uses an "ACME Giant Fog Generator" to cover the entire house with fog. This causes Tom to suffer accidents as a result from the fog, while Jerry has a flashlight to be able to see and tries as much as possible not to expose it to Tom, otherwise the cat will catch him.
- The title is a pun on the idiom, "Sick as a dog".
- The giant fog generator that Jerry uses is made by ACME, a fictional corporation in Wile E. Coyote and Road Runner cartoons.
- Running Gag: Tom keeps falling down stairs and getting hit by several house furniture because of the fog blocking his view.