Actually, an even better example...In theory, but let's be honest, the odd Rathgeber does not prove this theory in practice.
The vast majority of members are loyal to party over constituency.
For those who don't know, Rathgeber was a Conservative MP who was forced out of caucus after voting against his own government. Ended up being freed to represent his constituents as an independent. He ended up voting along the same line as Elizabeth May on most subsequent votes after that, which was interesting.
I watch a lot of CPAC. Need a better hobby.