:)

http://en.wikipedia.org/wiki/Advantage_gambling
http://en.wikipedia.org/wiki/Card_counting

A smart player can bet minimally when the statistics are what would normally be expected but when a deck’s statistics become more favorable for certain bets, they can bet more and average over 100% because of the variable sized bets and the fact the house’s edge assumes the deck has a ordinary distribution of cards or that the player would not be counting well enough to derive advantage from the small occasional drift.

Likewise people have analyzed many lottos as decent investments given: long timeframes, large amounts of money, and assuming the rules (or rules other payers used) would not be change if a person actually tried to take advantage of people’s lack of ability to choose good random numbers leading to numbers that would have much lower odds of sharing a win.
In reality, I think a this would not happen. A person with a sound strategy to make money on a lotto would be noticed, and the rules would be changed to limit ticket buying or something similar to defeat such players before they embarrassed the government.