Cameron, a very reliable friend, watered Sasha's plants free of charge while he was away.
I had to water Sasha's plants. How come? She went away for a bit and didn't want her plants to dry up. You are a good friend, I am sure she is very grateful. She is! She wanted to give me some money, but I couldn't accept it. She invited me to a coffee instead. Surely she is glad to have such a reliable friend to count on.