I'm wondering about situations like the following:
Last Friday night my dad chose to take our family out to dinner because he'd received a coupon from a friend of his at an expensive restaurant.
Then he and my mom told me and my brother "Thank my friend for this dinner."
Thing is, the request made me feel awkward. I have never met or had contact with this friend. He's a Facebook friend of my dad, but not me or my brother. He sent the coupon to my dad, and it was up to my dad what he did with it. My dad didn't have to take my mom, me, or my brother out to dinner. I feel like while I owed my dad thanks for the dinner, and *did* thank both my dad and his friend, I didn't "owe" his friend thanks for the dinner the way my dad thinks I did.
Would you have sent thanks on command to a total stranger in the same circumstances?