I have a feeling this one is as old as the internet, but here goes:
During a company’s recent password audit, it was found that one employee was using the following password:
MickeyMinniePlutoHueyLouieDeweyDonaldGoofySacramento
When asked why they had such a long password, the person said they were told that it had to be at least 8 characters long and include at least one capital.