Hi, Will adsense be banned if someone from a bad neighborhood links to my website. The nature of linking is one way and I don't refer that website.
I doubt it. However, although it is out of your control, your site can get some kind of penalty due to bad links - referred as a "negative seo". Even Matt cuts admitted it somewhere that it is possible... But getting banned from adsense (although they often ban without reason), because of bad links is unlikely - unless you have such links/content on your own site.
Not true... If that were true people would use that against their competitors and every bodies Adsense account would be banned.