I'm just wondering if it's more of a problem during the winter months in the Metro stations regarding homeless/beggars/ thieves. I'm traveling with my mom and aunt and am trying to decide the best -- and safest -- ways for us to get around the city. I read an earlier post about buying a two-day pass on the hop on/hop off bus, which I think is actually a good idea. Our family of four rode the hop on/hop off busses in Paris, Rome and London two years ago and thought they were great for orienting yourselves to the cities. But I hadn't considered them as just a transportation option. We had no problems in European subways, either, except I did witness one pickpocket "event" on the Paris Metro going to La Defense. But the chilly weather got me wondering if we will be hassled more if we take the Metro around in early March.