Was this a little mean of the teachers?

Today me and two of my friends were walking across the school playground and we were all waring scarves because it was freezing cold, as we live in England where it is nearly always cold. This teacher came up to us and said 'Take of those scarves, or we will confie them!', probably because we have ofstead in. But that's really out of order of them in my opinion. I know I'm over reacting but I think this a little stupid in my opinion. Remember, I live in England, very cold!