[ He waits until said attendant finally hurries off before speaking. Who knows what she would do if she found out Lelouch had purposefully knocked the cup over. Probably charge him somehow. ]

She was a little pushy and it didn't seem like she was going to leave you alone any time soon.

[ So yes. Makoto's instinct is right. ]

I don't really care for people like that.

[ And his motivation. ]