What are some historical or current events that best describe or support Poor Richard's Aphorism "A small leak will sink a great ship."?in Poor Richard's Almanack
The one that comes most immediately to mind for me is the current trouble that our (United States) economy is in. You can say that it started from a relatively small leak and that it has sunk a great ship. At any rate, it has certainly caused a lot of trouble.
The economic problems can be traced to companies giving out mortgages to people who really could not afford them. Each individual one of these mortgages was a very small leak. And you would think that mortgages in general would be pretty small compared to the US economy as a whole. But when all those mortgages got put together and when the financial companies started making derivatives based on those mortages, they turned into a really big deal.
Because of all these little leaks, the US entered a huge financial crisis back in late 2008 and has not completely recovered yet.