step 1: throw frisbee onto the roof
step 2: convince adult to retrieve frisbee using any and all tacktics possible: crying, pleading, wining, big puppy sad eyes. if all else fails, zero in on weakest adult in group; note, this adult is usually not your parent.
step 3: obtain ladder
step 4: climb onto roof and retrieve frisbee
step 5: all is as it should be, play may commence
note to self: throw frisbee AWAY from house, roof and all other high objects