You just don't do that in Russia !

Different countries, different customs.
The Austrian skier, Nicki Hosp was being interviewed right after her Silver Medal Race. 
The cold temperature made her  nose run a bit. So, she did what every self respecting snot-nose would do. She pulled a handkerchief and in a very lady like fashion she dabbed at her nose a bit.
Other athletes were also caught on TV blowing their respective noses.

That, my dears, is an absolute No-NO in Russia. We were told, that if you feel the need to blow your nose, you find a solitary place, like a bath room or other hiding place and that's where you do this dirty deed.

The things you learn while watching the Olympic Games in Sochi !!