Who knew that this could be an issue - I certainly didn't - but apparently it might not be as innocent as I thought it was. I do it all the time in restaurants after eating at the table (only when I have a full-face makeup on, that is) but I was told it isn't good practice to do so. 

But is this true in the first place? 

Now that I think about it, I can't remember the last time I saw someone applying lipstick in public, to be honest. 
No wait, actually, I do; it was on a train in Tokyo. But in Malaysia? I'm surprised that I can't even recall seeing this, so perhaps it's not the norm here.

The question is, how much should I care about about those that find this unfavourable / embarrassing (for me) / borderline-offensive? Are these people even in the majority? 
Am I actually over-thinking with this "non-issue"? (PS: I know I am, because I'm dedicating a whole post on it, but for the sake of argument...)

At the end of the day, I think I'll continue doing it anyway - certainly saves time than nipping to the public bathroom, doesn't it?

Do you do it, too? What are your thoughts on this?