Every time a liberal says this, they should immediately be asked, "If you teach your son that stealing is wrong, and then he gets picked up for stealing, does that make you a hypocrite?" They'd have to move on to another (undoubtedly equally stupid) line of attack.
If I calculate correctly, Bristol snuck out and ended up pregnant just before or after Guv Mum had her baby. I suspect it was while Governor Palin was out of town.