Young children are learning a local custom by watching adults , and it appears to involve pretending to be asleep .
It is impossible that some children are learning how to pretend to be dead from adults who are afraid of bears .
It is impossible that some children are learning how to pretend to be dead from adults who are afraid of bears .
It is almost certain that some children are learning how to pretend to be dead from adults who are afraid of bears .
Some children are learning how to pretend to be dead from adults who are afraid of bears .