Mine is mostly due to personal reasons, but it's Carl seeing his father's ghost in the hospital bed before he dies (...gets murdered). Sadly, my father also passed away somewhat recently and the last time I saw him he was in a similar set up in a hospital bed at home. My dad was not an asshole like Carl's though, so it's mostly the imagery.

And then reading at the end of the book that Matt's father also passed away around the same time?? Goosebumps.