LOL. He doesn't get offended, he's not from New York.....lolIf I didn't say it he would....lol
Yeah, you know us New Yorkers and our thin skin!

I've never done one trying to rescue one I believed to be alive. But since my first "eggtopsy" attempt found a live chick, I go into every eggtopsy assuming it could be alive. I have a seam ripper that has a nice sharp point that I have used to scratch the surface and weaken it before poking through. I've also used one of those tiny Phillips screwdrivers (like you work on eye glasses with) to "drill" a pilot hole. A nice sharp knife works too, if the shell is scratched really well first.
WV, that's what happened to me my first time! The worst, isn't it!!! I use a screw and tap in a small whole, then go from there. I'm surprised at how tough those eggs are. I'm hitting them hard sometimes and can't break the shell!