Originally Posted by telesien

Hi,
to make long story short, I have installed new Shimano chain on my bike, but made stupid routing mistake and had to do it again. I managed to push the pin back the same way it came in just enough to disconnect the two links without it falling out, re-lubricated and pushed back. No hassle, no special tools, no excessive force, it looks just fine.

Now how safe that is?

I know you are not supposed to reuse regular pins, but the reason given for that is that you lose that tiny o-ring at the end when you take it out, so you make that a weakspot, but the specialized connection pin doesn't have anything like that. It didn't even have the pilot tip.
Does anyone here have real experience with this?