This video makes a point I always bring up. There's a distinction between a professional environment and personal environment.
[video=youtube;TUvRPmL61SI]http://www.youtube.com/watch?v=TUvRPmL61SI&feature=youtu.be[/video]
[video=youtube;TUvRPmL61SI]http://www.youtube.com/watch?v=TUvRPmL61SI&feature=youtu.be[/video]