The 30-year-old man is a watchdog and walks around the kitchen table all day.

The 40-year-old man is a wild dog, and he is always looking for flowers.

This 50-year-old man is a mangy dog and carries Viagra everywhere.

The 60-year-old man is a mad dog, and a bite is a bite.

The 70-year-old man is a sick dog and can only touch the young lady's hand.

The 80-year-old man is a dead dog and has no idea at all. Hitachi is 40 years old, Microsoft is 50 years old, Panasonic is 60 years old and Lenovo is 70 years old.