You ask Dave if he wants lunch at your house and he says,"Sure
but let me call mom."
* * * * * *
A little later you and Dave are eating lunch at your house and
chatting about Barbara.
Your mom said be home by lunch time you ask dave,
"Do you have the time?" Dave says,"Its ten till
twelve.""Great," you say."Dave I have to go home
now, or I'll get busted""Okay," he says.