Quote (Red Cross Screening Question)
In the last three years, have you ever been outside the United States or Canada?
During the period of time in question I've only been in the US, therefore I have to answer "Yes", since I've been outside Canada.
Due to the sentence structure, the only valid answer is "Yes".
One other take-away is that overworked nurses have very little patience for smart alec programmers explaining boolean logic. They also can get their revenge in a micro-aggression called "find the vein".