In this clip from Up (most of it seen before in the trailer), an overweight child stands precariously on the edge of an old man's floating house. The older gentleman asks how he arrived there, to which the child gives a confused answer that reveals he was chasing a rat. Then, realizing he is thousands of feet in the air, and fearing for his life, the pudgy youth begs to be admitted inside, but the old man refuses, shutting the door and leaving the boy on the porch, presumably to die at the next wind gust. Pixar is really getting dark with their stories:
Is this Up or NEGLIGENT HOMICIDE? Oh, wait, there were colorful balloons. Maybe it isn't depressing after all.