These have pretty much been mentioned already but
*Never played the GK games or The Last Express
*I use walkthroughs more often than I should or at least UHS
*I enjoy Escape From Monkey Island & Monkey Kombat
*I often use God Mode in action games
I don't consider playing casual or HOGs a sin. I enjoy them too. Never thought I would, but I'd never make the mistake of putting them in the adventure game genre.