It is a common insult among many groups, especially those with a criminal bent, ironically enough. Rats are rodents with a long tail and tend to live near or around humans. They are as small as mice or big fat rats that live in the sewers. In many cultures rats are synonymous for a lack of loyalty, of low moral standards and highly selfish behaviour.
Play online games with the bigger, less popular versions of mice, who have been unjustly blamed for the plague. That's why the rodent lovers of have put together this great collection of free lab rat games. Rat Games are animal simulation games featuring mice and rats. Everybody loves a cute little mouse, but there's no love for big fat lab rats out there.