The researchers found that turning to someone for even modest help (like minding a child for an hour) had the cost of later demands for a return of the favor and that this cost was nearly intolerable.
The researchers found asking for help brought demands in the future.
The researchers found asking for help brought no demands in the future.
Firefighters are riding in the firetruck on the way to a crash.
A big wall with graffiti on it.
I hate flowers so I don't think I would ever make a flowerbed.
A child is standing in the water.
There is a woman on the sidewalk.
Their motives were crystal clear and easy to discover.