Bob,
congrats on your good health. How big is your sick bank? Do the math. If you have 1500 hours, its time to get "not so healthy".
Other words - call in sick for the rest of your career. Get a migrane, back ache, vision problem, incontinence, whatever - get out of that seat. Now. Go home and enjoy the rest of your life.
Logically, it makes sense. Your sick bank will not be cash-able for the $18/hr if you go to 65. Why would you want to do that anyway when you can cash in for your hourly rate? And you retain passes and medical benefits while "sick".
It's been nice, Bob, but not that nice. Time to leave.
Bye.