Bug in the MSN (Windows Live Messenger)

I FOUND A BUG IN THE MSN!
The nudge option should happen in each 10 seconds, right? I found a way to display the "nudge" in other users in a period smaller than 10 seconds.
Basically you nudge the person, close the window, open again (do it faster than 10 seconds), and nudge again. You'll see that you will be able to nudge the person several times in a small period.
Application: Version 2008 (Compilation 8.5.1302.1018) - Portuguese (BR)

The financial impact of software defects

According to a study commissioned by the National Institute of Standards and Technology, in 2002 software errors were estimated to cost 0.6% of gross domestic product in the U.S. In real money, that's $59.6 billion per year lost or spent because of errors. The study also suggests that more than a third of these costs could have been avoided if testing had been properly in place, particularly early in the product development lifecycle (National Institute of Standards and Technology 2002).

Source: Training material - Software Testing module (IBM Certified Specialist - Software Quality certification)

General Attributes of Good Testers

- Are reliable;
- Are thorough;
- Have an inquisitive nature;
- Enjoy breaking things;
- Are ruthless;
- Are creative in terms of identifying likely faults;
- Are persistent;
- Are patient;
- Are detail orientated – analytical thinking;
- Are diplomatic - for example, avoid conflicts with developers;
- Have good communication skills;
- Have good observation skills.