Discussions about money can lead couples into 'treacherous' territory.
They were not prepared to hike over such 'treacherous' terrain.
The snow made their hike all the more 'treacherous'.
(..) ...to serve the master of the precious. We will swear on... ...on the precious. Gollum. Gollum. The Ring is treacherous. It will hold you to your word. Yes... ...on the precious. On the precious. I don't believe you! (..)2002 The Lord of the Rings: The Two Towers