Cultural vs Hygiene

I've recently transferred bosses (both immediate boss and boss's boss) because my old boss left the company. And I'm sensing some big cultural differences between the two sets of bosses. They might even be hygienic differences, I'm not sure. You decide...

1) Boss comes in and stands really close to my chair. Strange because most people hang around the perimeters of the cube when talking to me. No concept of personal space.

2) Boss comes in, discusses project, then proceeds to pick his nose and use my markers.

3) In boss's boss's office, discussing project. He begins to bite his nails and then handles the documents.

So now I have a bottle of instant anti-bacterial hand gel at my desk.