Have you ever helped a complete stranger??

I always hold doors for people with strollers or for the elderly with walkers or wheelchairs....but on a daily basis I build family trees on a free website for families to whom I am not even related. I am reasonably good at researching and building trees, and I am able to fix, correct, fill in, connect and complete with some ease....so if I see a tree that is a mess of incomplete information, I will process the entire tree. I always think to myself that I am bringing people together with their own history. So often I will see a family of ten brothers and sisters....and most of their descendants only know their great great grandparents first names...and don't know any of their great-great-aunts and uncles.