For the past few weeks, i've been bombarded with calls from telemarketers 3-4 times a weeks from agriculture investment companies, hotels, dairy cows, telecommunication companies, u name it. Most likely i've already heard it. So this video from youtube (which i got from browsing http://tritwins.blogspot.com) really got me laughing on the floor. I spilled some of my coffee.
So if you ever got caught in similar situation, you may want to try this.
And this one is quite good too. It is to test your observation skill.