The young woman got her PhD in biology and came to thank me for whatever help I gave her. Oh, yeah -- she has MS.

Or the girl who I helped find information on mummification for -- who went to State in the science fair competition for mummifying a squirrel, and who was nice enough to thank me.

Or the fellow soldier who grabbed me as I went sliding by him, 200 feet up in a dustoff. I was grateful that time!