I admit it. My characters bullied me into altering my plot to accomodate their need to be highly suspicious of one another. It'll be a small alteration (same events, just a different motivation behind them) but still, it's going to make chapter 15 into something very different than it would have been otherwise.
And just for random interest, I give you a couple examples of what NOT to do when submitting to either agents or editors. Moonrat has this to say on the subject, and Jennifer Jackson mentions this little quandry.
Seriously, in what business ANYwhere are these behaviors acceptable? What are people teaching their kids these days??? (because thoughtless, tactless adults have to come from somewhere, they don't just spring into life fully grown)