Indeed. one of my favorite learnings in life is the power of admitting when I'm wrong (which is often enough). Quite an empowering decision and also relationahip building.
However there are times when people find it so unusual that they see it as weakness and instead of admitting their own wrong, try to capitalise on an opprtunity (perceived weakness).
One exception though is playing chess online, where my ego is yet to be mastered.
I use self-deprecating humor a lot. And some people, usually the ones who don't pick up on the irony, also use it as an opportunity to attack. It's quite sad when you think about it :)
