It’s never fun to say goodbye, but when that time comes, it’s always best if you can go out with style. That’s what Sum 41 did before more than 10,000 fans at Laval’s Place Bell this past weekend. The “Tour of the Setting Sum” began almost a year ago, with the final shows set to take place as the month comes to an end. One of the final stops was here in Laval, just a short trip across a bridge from Montreal, a city that helped break the band 25 years ago. I seem to say this a lot lately, but how is it possible that 25 years have gone by so quickly? It only seems like yesterday that we all were introduced to these mischievous, no-goodnick middle-class brats and their hit song “Fat Lip.” I can still remember listening to our local radio morning man, Terry DiMonte of CHOM FM, championing them...