Fortunately, I never had too many problems with any of that.
But that's because I knew the rules, respected them, and also respected the hard work my mom and dad did to keep me fed, roof over my head, etc. If you ever watch an episode of Supernanny, it's almost always "Make a schedule, create a time-out area, done".
Physical discipline is reserved for the very rare occasions wherein:
1) You're trying to prevent a very grave harm from happening to your kid, but it's probably going to happen anyway, and experience is the best teacher
or
2) Your child has tossed aside his/her values, ethics, and morals, in which case, severe lapses must be met with severe consequences.
But it's not just kids. Drivers, business leaders, many, many people get away with inappropriate behaviors. Eventually, the pendulum will swing back to where the public is decent once more, but in the meantime, it's wise to be wary.
Now for those who prefer the air tl;dr version:
BE A LAX PARENT
~ADVICE DOG~
BEAT YOUR KIDS