had our gorgeous orange corn snake for six months now, first reptile ever. bought another `corn` black and white from a pet shop. been told by a couple of people that it may be a rat snake, it`s only ten inches long and has same type of markings as our corn snake. how can i tell if it`s a rat snake and wahts the main differences. our corn is beautiful and placid and an escapee sliding loose in the house at the moment. missing week back for 48 hrs and escaped again. the black and white one is more eratic and unsettled and just not the same. any ideas guys?