About 10 years ago I was driving from North Dakota into Manitoba via I-29. The Canadian border official sent me to "secondary" where for 90 minutes they pulled my car apart,demanded the password to my laptop and asked me 1,000 questions about guns. When they were done they allowed me in and I've entered a dozen times since then without a problem.The only thing I can think of is that a guy with my name (I have a very common name) was on some kind of watch list.
I would’ve told the Canadian Stasi that my computer my password is “CanuxSuxDix” with a shit eating grin.