A person with a disability who reinforces the stereotype that people with disabilities don't care about their appearance and don't care what others think often at the detriment to themselves and others with disabilities.
A person, often holding a position of significantresponsibility within military, political, or business contexts whose words or actions are considered by some to undermine established objectives of the greater organization.
In our operationshandbook, the section with the heading "definitive loose cannon" contains a picture of John Bolton.