Actually, I think a lot more teams will follow it than you think. These studies have been done where people are given surveys. The surveys say things such as, "Do YOU do <insert bad behavior here>? Do you think others do?" Not surprisingly, everyone who answers says, "No I don't, but everyone else does."
Most interestingly of all, at the end of the survey there was a question, "Did you take this survey seriously? Do you think others did?" This isn't even a bad behavior people would be ashamed to admit - it's more showing that people don't have faith in others.
In other words, I really think most teams will stick by the fix it window. After all, YOUR team wouldn't consider breaking rules, would it? Why would any other?
