Funny SEM Anecdote: Le Chat
[This all happened in France, so imagine I'm tell you this in French]
A French guy I know was at a meeting in Paris with a French SEM & their client. The SEM had a recent list of the top 100 search terms, and while talking about keyword generation he motioned to the list on the wall next to him and to prove a point about the ever-changing nature of top search queries, said "See here? 'Cat' is one of the top 10 search terms. Why 'cat' and not 'dog', no one knows, that's how varied users' search queries are."
The French client sitting across from him said "Maybe it's because 'cat' ('chat', in French) means 'chat' in English...