Do you try a really hard not to offend anyone?

I don't usually set out to offend people and often find myself wondering why other people laugh at idiots, because that idiocy is leading to the downfall of the human race. But if someone gets offended by something I say or do due to something brain numbingly stupid, like thinking the Earth is flat or religious beliefs, then I really couldn't give a shit and might actually get some pleasure out of it.