Comment Grafiiti and breaking the law (Score 1) 245
According to a broadcast I've watched by Prof. Spitzer*, it seems that observing the law being broken in some place, makes people break it too.
Say someone see a sign saying "no graffiti allowed" and behind it a wall with graffiti on it, and say someone else has put an advert on the first's windshield - he will more likely throw it on the ground right away than dispose of it in a trashcan. I suppose it is something to do with "Status-Quo", it signals that the law is a joke around that area and so you will act accordingly.
Now, back to the topic - when your peers misbehave, you will more likely misbehave. This seems to be in direct relation to the graffiti example.
I have also read, in a book by Steven Pinker (The Black Slate), that youngsters learn to behave from their environment and not their parents.
What their parents are able to do however is to be careful about who they let their children hang out with.
Yes, it seems that bad behavior is contagious - this is another expression of what seems to be in the human nature; When in Rome...
*link, in German: http://www.br-online.de/br-alpha/geist-und-gehirn/geist-und-gehirn-manfred-spitzer-gehirnforschung-ID1240404245825.xml