Ancient History

Last night, Rod went into Nate's room to tell him "good night".

Rod:  What are you reading, Son?

Nate:  Ancient history.

Rod:  I don't think your mother would appreciate that.

Robyn overheard the conversation from her bedroom.  When Rod comes in...

Robyn:  Why wouldn't I like him reading ancient history?

Rod:  It was your high school yearbook.