A drawbridge mentality is the attitude of people who have become more or less likely to be affected by it. plans put forward by those already located there.
The term can imply a selfish attitude and can be taken as an insult by the local people. It is closely related to the NIMBY attitude. 
A drawbridge was historically the hinged bridge at a castle’s gates providing entry across a defensive moat . Raising the drawbridge to a vertical position was therefore one of the means by which intruders could be shut out of the castle.
- And did those feet in ancient times
- Campaign to Protect Rural England
- Lifeboat ethics
- Mentality seat
- Splendid Insulation
- Tragedy of the commons
- Jump up^ „Orange County Perspective: That Drawbridge Mentality“ . Los Angeles Times . July 16, 1994.