Shouldn't "it works like a charm" be said about things that don't work?

Shouldn't "it works like a charm" be said about things that don't work?

I am excited about it. No-one really knows him [Kumar Sangakkara] as a person and everyone is looking forward to that. Getting to know players like Amla, Ponting and Smith has been special and this is great, because he [Sangakkara] is here for two years, it's no flash in the pan.

The people who know the sort of personality or persona that I give across more on Twitter just realize that I'm just being messy and I'm just snatching wigs.

If anyone's comments affect anyone that much, I think it's more about their own security with themselves, because you can call me whatever, and I'm going to be good.

No regrets, only choices.

If you can't laugh at yourself or take any type of criticism or comment about yourself, I think it's more of a reflection of you.