A question was recently posted to MetaFilter on how to tell if your company is in trouble. Followed are responses from many people, including these:

*Lots of closed doors that usually were open.
*Outsiders touring the facilities.
*Lots of spreadsheets being produced for outsiders regarding cash flow and finance.
*Usually talkative boss’ assistant goes silent.
*Non-owner management starts coming in late and leaving early.
*Over dressed management. Either shopping the business or themselves.
*Management starts taking all accrued vacation.
*late payments.
*reduction in perks such as free soda, snacks, etc
*document retention policies are changed to be more proactive in getting rid of docs.
*Changes in personality from outgoing to silent with management.
*in a smaller company, when owner starts taking as much out of the business as possible. Starts charging personal stuff to the business.
*revenue recognition rules are changed to speed up the accounting of revenue from contracts to when signed rather than when delivered or paid.

These and many more at this Metafilter question.