A BBC article talks about how people can be suspicious of random acts of kindness and discusses the spreading of a more positive attitude to kindness by paying it forward.
We should be delighted by an act of kindness but sometimes we wonder why a stranger or even someone we know has done such a thing and view it with suspicion rather than smiling and thanking them. When a loved one comes home with flowers or a child offers to do something around the house for a parent, a question often asked is, 'What have you been up to?' as if they are making up for bad behaviour rather than being wonderfully sweet and thoughtful. This extends even further with a stranger.
A kindness on your part this week is to let the suspicion go and next time someone is kind to you, see it as it is, enjoy and say thank you.