This past Sabbath:
SubWife: Why don't you come with us to the playground? It's a nice day.
SubHub: I would rather not.
SW: Oh, c'mon.
SW: Okay then.
SH: Just don't come back too late. I have to be at SubHubFriend's at 5.30.
SW: Isn't he like half hour away?
SH: Well, he's giving a class on Passover and would be glad if I came.
SW: So let me get this straight (no pun intended). You are willing to walk half hour each way not to disappoint SHF, but not afraid to disappoint your wife and children by not going with us to the playground?
SH: SHF knows it's a one-time thing. With you, it's a bigger commitment - if I go once, I will have to go every time.
SW: Does SHF know it's a one-time affair? He might expect more and you'll have to decide between walking there weekly or breaking the man's heart.
SH: I didn't think of it this way.
SW: I see. Well, I am taking the baby with me, so you can leave any time. I don't want to stand in the way of your and SHF's happiness.
Happy to report that SubHub decided not to break any hearts and instead chose a nap, to nourish his well-established relationship with his pillows. The man gets around.