Basic Work Ethics

Couple of days ago, one of my team member brought a complaint to me. The complain was she can't sit in her current WKS as the male colleague siting next to her used to smoke a lot and the odour was irritating her. I asked her to present a mouth refresher. Obvious, this will embarrass anybody but have no choice.

As a grown-up adult and a responsible corporate citizen, one should possess at least the basic work ethics. Thinks like bad breath, ugly outfit, irresponsible languages & behaviours should be avoided in work places. No one will teach these. Also, not learning these is not good for them also people around them.

Why do one want to embarrass themselves by doing these silly things?