Huh?

A few months ago, Dave Ohlerking of Children's Cup posted a blog titled, Hell Money, It's no Joke. It was an interesting exposure to the Chinese Culture's idea that by "sacrificing" money by burning it, it would go to their anscestors to use.
Okay. I can kinda get that.
But then today I read a news article about the new trend in "sacrificing" lots of things, including television sets, and get this... Viagra!!! No, I'm not making this up. They are burning paper representations of the little blue pill, as well as condoms for their randy ancestor.
So... if you've already died, do you need to be concerned about safe sex?
I mean, are sexually transmitted diseases a threat if you are already dead?