NK - A Question of Mathematics Related to the Library Account

[KTMC]

Lady Rowan posted, in part,
<snip>
I was a sophomore in high school.  Ack. :-)
<end of snippage, and remember that anything posted may be snipped
against you in a List of the SCA! : )   >
After having earlier stated the offending librarian had been doing this
for 13 years, lets see..
Average age of a high school sophomore = 16
Years librarian has been making errors = 13

  16
+ 13
_____

A major birthday coming up, perhaps?
Do I have to sign mu name after the above?

Valstarr