What are consequences of continued out of alignment choices by players?

Hey @ChrisPerkinsDnD what are some ingame consequences you use when you see continued out of alignment choices by players?

— Econ Pvper ! (@Anhrez) February 21, 2016

I'd remind the players of their characters' alignments and warn them that evil PCs become DM-controlled NPCs. https://t.co/WQUEqwxwbu

— Christopher Perkins (@ChrisPerkinsDnD) February 21, 2016