Enough research will tend to support your conclusions.
If there is a possibility of several things going wrong, the one that will cause the most damage will be the one to go wrong.
When working on a project, if you put away a tool that you're certain you're finished with, you will need it instantly.
A failure will not appear until a unit has passed final inspection.
Friends come and go but enemies accumulate.
People who can least afford to pay rent, pay rent. People who can most afford to pay rent, build up equity.