inappropriate jokes will always tend to offend those who have been personally affected.

I have a buddy who knocked his gf up, she had an abortion. Not too long after, one night in a drunken stupor, I mass sent out a link to this pro-life blog, where the author had taken an onion article "I just love abortions" seriously, and posted this big long hilariously angry response to what was obvious satire. The aforementioned buddy was accidentally part of this mass email and I guess there were some graphic pics that pro-lifers love to use.

Needless to say, he wasn't impressed with me. But it'll be a cold day in hell before I think it's inappropriate to laugh at that situation -- I obviously should have just been a little more careful who I sent it out to, but on a public messageboard, we don't have the luxury of knowing everyone's sensitivities, so those who are can just suck it.