It's good to support things you love.
Carla loves to listen to the free band concerts in the park on Friday nights.
Carla wants to enjoy the Friday concerts.
Carla always drops a couple of dollars in the donation boxes.
Carla consistently walks past the donation boxes without contributing anything.
The band plays the full concert without having to ask for donations.
The band starts a policy of pausing after the first half hour and asking for contributions from the audience.