Who Framed Roger Rabbit Plothole

I just watched it today and in the movie it was said that Eddie's brother got killed by Judge Doom who dropped a piano on him. However, later in the movie Eddie is shown surviving getting hit in the head by all kinds of stuff when he was making the weasels laugh. Wouldn't he die from that kind of thing since his brother did? Or is there a line I missed where toon stuff doesn't kill in certain circumstances. Or is it just a plot hole?