It is likely that the raccoon invasion went undetected for quite some time. Raccoons are nocturnal by nature and would have been sleeping during banking hours when people were in the bank office.
Friday, September 29, 2017
This Week in Bank Failures, Raccoon Edition
A Royal Bank of Canada branch in Toronto had to close a month ago when a raccoon family was discovered living in the ceiling. [ http://www.cbc.ca/news/canada/toronto/raccoons-close-bank-1.4314306 ] Now the bank says the branch will stay closed for another month. Workers had to build scaffolding to reach the damaged ceiling and, after examining it, found that the damage the raccoons had caused was more extensive than originally thought. The branch will reopen after the raccoon damage has been repaired.