“The landlord has not been here in months, so I assume it was a previous tenant.
Source: [MarketWatch](https://www.marketwatch.com/story/im-dreaming-of-cocktails-at-chateau-marmont-i-found-100-in-my-airbnbs-communal-washer-what-should-i-do-9694ecca?mod=mw_rss_topstories)