They become Conservatives.
First we had top Democrat consultant Donna Brazile scratching her head and wondering why her health insurance premiums were going up. Now we have painfully unfunny HBO comedian Bill Maher discovering the unfairness of confiscatory taxation, courtesy of NewsBusters:
For the sequel to this, we ask:
If Liberals become Conservatives when they get mugged, what happens to Atheists in Hell?
Bill promised to get back to us on that.