9 (my daughter) was watching 5 (my son) yesterday
as he danced around, talking and singing
and kung fu fighting the air
while holding up a running commentary
for his (invisible) friend sonic (the hedgehog, of course)...

9 watched silently and intently
for a few moments
and then muttered to herself
"someone is going to have a hard marriage"
"very, very hard"

and then went back to reading her beloved archie digest.