My daughter went on a mission trip to an area that is really depressed.  She brought something extra back home with her though.
What did she bring back?
Lice - she brought back LICE!  I was so embarrassed by it, even though I knew she'd gotten it from the children she went to serve.  Of course then I was sad for those kids not having anyone take care of that for them.
Wow that's awful, I had lice in school.