For example, if you enter "How can I get my X to", where "X" is: "wife", "cat", "dog", you'll find overlapping suggestions like: "How can I get my {wife, cat, dog} to lose weight", "How can I get my {cat, dog} to gain weight".

Hacker News readers came up with a lot of funny examples:
* Why is {America, Canada, Europe} so ...
* My {friend, wife, husband} is addicted to ...
* Why are {Chinese, Korean, Japanese} so ...
* Why is {C, PHP, Java} so ...
You should keep in mind that Google's suggestions are determined algorithmically based on the popularity of the search terms, so you'll find many stereotypes.