I'm not sure I quite understand why a person might be offended by the sight of a person putting on makeup on public transport. I find it no less visually distracting than seeing a person eat on the train, and it smells less. It also makes very little noise, unlike those horrible little earbuds that come with iDevices that seem to project more sound outwards than into the ears of the wearer. It doesn't involve sticking your hands into the face of the person sitting next to you, unlike reading a broadsheet newspaper. The person putting on the makeup is also not in control of the vehicle, and is therefore not putting other passengers at risk. It's actually a feat that's rather difficult to master, as anyone who's wielded a mascara wand or eyeliner in a moving vehicle without poking him or herself in the eye will know.
What do you think?
Seeing a person applying makeup while riding public transport is: