Hi all, My main character is going to discover he is not the father of his son, however I'm unsure how to reveal this in a somewhat realistic way. My plot line is leading to an accident happening (possibly a shooting) which gets the son injured, and I thought that possibly blood types could be a way to raise the possibility of paternity. I've done the blood type research and all, but I'm unsure of exactly how the details would be discovered. I'm not sure how the emergency donations would work, and I also understand that a doctor wouldn't spell out any impossibilities. However, it's unlikely that my character (or those around him) would know enough about this kind of thing off hand to realize, without having cause to do research. So I guess my question is, does anyone know of ways that can bring paternity into question in the event of an accident/emergency? Other than an (accidental) confession of course. I'm trying not to make it too contrived, and I'm okay with bending realism slightly (as in the doctor/nurse letting something slip) but I'd ideally like a smooth and believable way to bring up the question of who's the real father, and Google isn't helping me figure something out. Any help or suggestions would be really appreciated. Thanks.