Kevin O’Leary, a big-name investor known for his no-nonsense approach to business, has a unique strategy for dealing with family members who ask him for money. He’s had his fair share of relatives coming to him with big ideas and high hopes, looking for a hefty investment. And with O’Leary’s financial standing, it’s not surprising. The Canadian business owner and Shark Tank star has a net worth of around $400 million. Don’t Miss: General Motors and other leaders revealed to beinvesting in this revolutionary lithium start-up — allowing easy entry by launching at just $9.50/share with a $1,000 m…