apart from the windows one there's also RID Relative in Distress scam happening across Canada, they called my Grandma who's 81 and pretended to be a Grandson stuck in Mexico and facing arrest if she didn't send 1350$ to cover the fees, when she said she has to call someone from the family to get a lift he insisted that she calls no one and that it's a secret that he doesn't want anyone else to know about...
This is the number they called from:
http://www.whycall.me/770-875-5246.html
Luckily someone within western union caught onto the scam and told her that everyone's okey. Poor thing almost had a heart attack