There are terrorists in Europe. Marketers can hardly allow Internet terrorism to dictate marketing methods. Doing so confuses the probability of risk with the risk itself. There are many cases when marketing backfires and is viewed negatively by some prospects.
Humorous campaigns can offend.
Telemarketing campaigns can offend. Intrusive methods can offend. Those risks are ever present. Recently, a hurricane was hurtling toward Florida. I got a call from Sears telemarketing dept.