It's a terrific crash, ladies and gentlemen!

This more or less says it all: Harper is campaigning in Toronto, Martin in Montreal. Indeed, the Bloc claims Martin's own seat is in jeopardy.
Meanwhile, Jack Layton picks at the Liberal carcass. INSULT TO INJURY (OR IS IT THE OTHER WAY AROUND?): John Crosbie puts the boot in:

My assessment of Mr. Martin is that if he sat in the sewer, he would add to it. I was active in politics for 27 years, 10 as a provincial elected member and 17 as a federally elected member, and I've been interested and involved in it all my life. This is certainly the worst behaviour I have seen of any party leader.