Back in '99, when the terminal was still open but only for charter traffic, a bunch of us, 16 in fact, in 8 aircraft (4 Cherokees, a 172, a 150 and a Lake Bucanneer), flew into Mirabel, had breakfast at the (still open) hotel, and flew home. As we all departed at the same time, security fired up a PTV to haul us out to our aircraft!!! One pilots felt guilty about using "taxpayer's money" to use a PTV but I said that heck, since we taxpayers sunk in a bunch of money for this white elephant, it was payback time and we may as well enjoy the PTV ride.
The funniest part of the trip though, was the poor ATC tower controller, trying to figure out how to handle 8 aircraft at the same time... probably more traffic than he'd seen in years. And all those Cherokees (I owned a Cherokee at the time), three of 'em blue and white, and having to use call letters instead of flight numbers. At one point he gave me hell for taxying without clearance (he was doing both ground and tower so little traffic there was), but I had just started my engine and hadn't moved yet.
It was a hoot. Since we were all used to flying at uncontrolled fields with way more "traffic" (movements) than Mirabel, we all managed to stay out of each other's way and the poor controller was relieved to get us out of his hair so he could go back to reading the sports pages until the next movement in 4 hours or so
Beech