My police pension would have reduced my SocSec by about $400 monthly, but I've paid in 29 years not including those 20, so it will actually cost me about $40 a month now. Not willing to work another year for $40 per month more in SocSec!
Some clarification for those who are not familiar with public employee pensions: Most public employees are enrolled in pension plans that require both individual and employer contributions, and employees do not pay into social security (although Medicare is generally mandatory). While not paying into social security means that there may be many years in which we are not building our SS benefits, many (perhaps most of us) have other work histories that result in a SS retirement benefit, although it is likely to be significantly less than those whose employment was subject to SS withholding for all of their working lives.
There are also provisions in the law for those drawing on public employee pension plans while also eligible for social security, generally requiring a reduced benefit from one or the other (or both).
I started working at age 11, and I started filing federal income tax returns at age 12. I had my minimum 40 quarters of social security withholding taxes paid by the time I was 23. Then I spent 24 years in public employee retirement plans, no social security withholding during those years. After that I ran a business for 20 years and paid both employee contributions for social security and Medicare (7.65%) plus self-employment taxes (another 7.65%), so I paid double what the typical employee paid into the social security program.
My benefits are greatly reduced because of the 24 years I spent outside the SS system. My wife and I always had relatively comparable gross incomes, but she was in SS all the time and her benefit is about 70% more than my own.
Of course, I have the public employee pension plans in which I participated, but those benefits are subjected to adjustments for SS benefits, and politicians continue to control the plans (investment media, payment structure, etc) beyond any control I might exercise.
The so-called "double dippers" can be given serious "haircuts" on both ends.