I remember having our characters get railroaded/captured during the abysmally weak FR module trilogy about the Time of Troubles (
Shadowdale,
Tantras,
Waterdeep). At the end of the first module you help Elminster fight Bane (the entire series consisted of standing around watching the "main characters" do stuff), and then Elminster seems to get killed, and all the Harpers blame the PCs (which makes no sense whatsoever, but don't get me started).
My buddy was all bent out of shape because they took our stuff and threw us in a cell. I turned to him and said, "Don't worry. The module will protect us." I've never seen my GM (still one of my oldest and dearest friends) get so pissed during a game. He called the session right there, and we basically all agreed to "annul" our experiences with the module. Turns out he was angry because I was absolutely right!