Another revealing exchange with Labour Councillor Tim Godfrey on Twitter today.
He referred to David Cameron as my boss.
Now I would be the first to concede that most of the 19,657 people who voted for me did so because they wanted to see a Conservative Government and David Cameron as Prime Minister, rather than voting for me personally. It follows that they would generally want me to support what David Cameron is trying to do.
But he is not my boss - and the fact that Tim believes so is a rather depressing insight into his thinking. I work for the 80,000 odd electors in Croydon Central. My job is to represent their views and interests to the best of my ability.
That's what I've tried to do since I was elected last May. Most of the time, I have supported the Government. But when I think they have got something wrong - like the amount of money Croydon Council gets to care for unaccompanied asylum seeking children - I've been prepared to say so and had some success in getting the Government to change its mind.
I take the same approach with my Conservative colleagues at the Town Hall. Overall, I think they are doing a great job in difficult circumstances. But where I think they're making a mistake - like the proposed parking restrictions in central Croydon or the possible closure of Shirley Library - I say so.
From the feedback I get, I think that's the approach most people want from their politicians - loyalty to the party they stood for but not slavish loyalty.