The kids were starving so Katerina made them some Pelemeni ( a kind of Russian ravioli ) & amp ; then we headed off into St Petersburg with Liza as well . Now there were 5 of us in the back so we took a rug that the kids could duck under whenever we spotted a policeman ! It was about an hour 's drive into the centre of the city through crazy Russian traffic , with Alexi shouting " Poleizi ! "
According to the above context, answer the following question.
Why would the narrator need to bring a rug along ?


The narrator is hiding people .