I had made good money in a mid-cap stock and started behaving like an expert. My best friend was getting married the following year and had around ₹7 lakh saved. I convinced him to invest ₹5 lakh in another company because I had heard that a major announcement was coming. I told him the downside was limited.

The announcement never came, the stock kept falling and we continued averaging. His ₹5 lakh became less than ₹2 lakh. He never demanded that I repay him, but his wedding had to be scaled down. Our friendship still exists, yet I know something changed permanently. I learned that giving reckless advice can damage someone else's life even if you never touch their money directly.