MONTREAL Potholes are a springtime frustration for anyone who drives around any city, but in the town of Carignan, just east of the South Shore, some residents have taken matters into their own hands. Local business owners Xavier Lavoie-Beauregard and Rene Labrecque called the town to complain about the problem plaguing local streets and damaging cars, but they say nothing was done. That’s why, on one rainy day this week, when they had to put off work for their own pool business, they had the idea to fill the potholes themselves, with materials they bought themselves. There are holes of death, said Labrecque in a recent Facebook video he recorded, showing a nearby street that was particularly bad.