the problem with words

me to sop:
"as we were filling out paper work today, it struck me that my initials, HC, both come before your initials, SP. And then i thought how H and C come before all your initials, SOP. And THEN i thought how the initial that comes last alphabetically in my name, S, is the same as the initial that comes last alphabetically in YOUR name. Isn't that interesting?"

sop to me:
"what?"