We have a bunch of numbnuts as a government

Since when did voting on a bill become a confidence motion in the Senate?

The Conservatives have said that if the Senate rejects the tough on crime bill, which includes a clause of upping the age of consent, it will be seen as a lack of confidence.

Last time I checked, voting on some bill is not a confidence motion. The only "bill" that is a confidence motion is the budget, and there could be some other ones that are more important.

Why did the Canadian people vote the Conservatives in? Are they trying to tell the world that they are numbnuts too?

I think the numbnuts, I mean the people in the government, misuse this notion of confidence.