Why?

Why do some guys, upon entering a public restroom and realize another person is in there, pretend that they did not go there to pee/poop but to blow their nose? You know what I'm talking about. They walk in and surprise, somebody else is there using the restroom/finishing up. So instead of walking directly to a urinal they walk to the paper towel dispenser or t.p. roll and begin blowing their non-mucus filled nose.