Worst US/Canadian border crossing

Wasn't all that bad, just ate up half the day. Must be 12-15 years ago, crossing over in Detroit, Canadian agent asked if I had any firearms. Obviously, answer was no. Then asked me if I had any at home. Kinda took us by surprise. Answered what difference does that make, so long as I'm not bringing anything into Canada, but for what it's worth, yes, have two non-useable antiques, an 1800s European grouse shotgun with Damascus barrels and an earlier 1800s musket. Had me pull into the inspection area where after a 2 hour or so wait a couple of other agents took the car apart looking for whatever they could find. Dumped everything, luggage contents included, on the pavement, gave me a permission-to-cross paper and walked away. Don't recall that either of them said a single word. Was asked same question our last trip to New England (2015)(wonder if it was the same agent?) crossing over in NY (Cromwell). I lied. Other than that only difficulty/issue/whatever was waiting in line to get processed through.