I have a friend who believes that if you pull up the handbrake (aka the parking brake) without pressing down the little button on the end, it "weakens" the handbrake, or otherwise shortens its life. He didn't give any more details about exactly what is "weakened".
I have a tendency to do this (pull it up without pushing the button in), and our handbrake needs replacing (the cable, I suppose). The car is about 12 years old and for all I know it might be the first time it's been replaced - we've only had it 2 years. There might be service history but I have no idea where it is.
So, there's no logical reason to think I've shortened its life, I just wondered if my friend's opinion has any basis in reality, and if maybe I need to always push the button in, in future. It's a Ford Focus Estate Mk2 in case that's relevant. cheers!