This sounds like paranoia. If he's in it for money like you, what financial motive does he have to ban you? Listen, if I were advertising aggressively, I'd anticipate negative reactions, and not take them personally. Spite is not a common problem in Adsense/Adwords, because we don't know anyone, and most folks realize different things work for different people, so it's all about testing. But you can always hop over to the AdWords forum and ask them if they'd likely be offended.