A good friend of yours has a visiting nurse who just happened to be present when you stopped by to see him this afternoon. Her shift ended in about 30 minutes so you figured you would go out and get some food.
Since you planned on going to pick up some food from a downtown restaurant you offered her a ride home. This also worked because she had a Peloton Bike that would probably be very beneficial to your friend, her patient (she felt you could put it in the car and you could help her assemble it next week).
You picked up some food first (treated her and purchased a little extra since she told you that she was staying with her cousin, Greta).
Greta is an actress and was living with her until she went on tour in the spring (she is appearing in "Hair, the Musical Tour").
When you arrived at her place, she introduced you to Greta and to your surprise Greta decided to put on an impromptu performance.