sacrificial love

I need to talk in church on sunday about this topic. I'm not too sure if I even know anything about it. yeah, there are the stories of the parent who puts their life ahead of their child; we get versions of this story through email spam on a regular basis. I need something else. I need something me. when it's personal, or needs to be personal, I have a hard time coming up with an example. sheesh. HELP ME!!!! as of right now, I am teeming with non-examples, and stories of how pride gets in the way of sacrificial love. how personal agendas and preservation of a life we think we have gets in the way of truly loving others. maybe I need to keep my mind on that angle and not on the whole "my sister's keeper" angle. when I get the whole mess done, I'll post it.