I've stopped shaking and vomiting enough to post about this because
I thought it was important to get this message out.  

Driving home from work tonight on the DC Capital beltway, stuck in
traffic as usual, and I saw a dog jump out of the window of the car
it was in when the driver had to come to a stop for traffic. The
lane I was in was moving, but slowly. The dog ran across two lanes
(one was where I was) toward the median, then never hesitated and
jumped over the median to the other side where traffic was flowing
freely. The driver/dog owner got out of his car and stood for a few
seconds in disbelief and probably wondering how he could run after
the dog even though traffic was still flowing slowly in the two
lanes that the dog had run across (it all happened so fast I'm sure
many didn't even see the dog) then when he saw the dog jump the
median, he didn't hesitate and ran after him. When he himself got
to the median and was about to hop it, he suddenly screamed and
wailed and dropped to the ground. He had just seen his dog hit. I
was screaming and crying and now I am again and shaking and in
shock and trying to drive my truck so I didn't get hit from behind,
blinded by tears. I was and am just SO ANGRY at this man for
allowing this situation even though he was in total agony himself
by what he'd just seen and had really caused himself. Why would the
dog jump out of the car?  What in the world could have been going
on his head? I was in shock and probably should have pulled over
but I wasn't thinking clearly I was just absolutely horrified.

People please! Don't let your animals have this freedom in the car.
You just don't know what they will do! The ones that make me even
more furious are the ones who let their dogs ride in the back of a
pickup truck. STUPID!!  I have, and will continue to, yell at these
people when I see it.