Some people believed I argued that object orientation is bad simply because extends has problems, as if the two concepts are equivalent. That's certainly not what I thought I said, so let me clarify some meta-issues.

If you think you’ve conveyed something but the other person hears something completely different, is that their fault or yours? 

From my perspective the onus is on you to consider not just the words coming out of your mouth, but how they are received.

Everyone has their own background and context that they overlay on top of what they hear. It’s our jobs as communicators to consider that perspective and to adjust the way we communicate accordingly. If we do, we stand a better chance of persuading them to agree with our point of view.

People often hear what they think should be said, not the words that are actually spoken. This comes from the tendency of people to think faster than they talk. A listener makes assumptions about what they expect because their minds race ahead. This can be especially problematic when you misinterpret what your boss said.