My friend has a question...

I need you guys! My friend Helga (identities changed for privacy - imagine I had a friend named Helga?) called me yesterday to ask my opinion on something that happened to her earlier that day. She was riding the train to her job and noticed she had a jagged edge on her nail.

She whipped out her nail file and started to clean the edge, just so it wouldn't get caught on stuff, etc on her way to the office. She had her iPod on, but heard quite clearly the girl across from her say, "Excuse me? EX-CUSE ME?!" So she removed her earphones and asked what was up.

The girl asked her if she could please stop doing that, which she obliged. My question to you is what would you do if someone was filing their nails on public transit?

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