Luigi's nair is ridiculous. I'm so used to trying to shield grab people that I always fall for it, every time. And every time it happens, my friend who mains Luigi yells, "The shield grab is a lie!"
For the record, Luigi's nair stopped the Nazi advance. It also stopped the plane from hitting the Pentagon back in 2001, but afterwards the crash made Luigi slide to far away to sh to New York and double nair the other two planes (d*mn his lack of traction...).
Luigi naired Captain Falcon in the balls and made him low tier .__. Also, Luigi naired the localization team to Zero Wing, and we ended up with the 'All Your Base' meme.
Seriously though, it's an awesome fallback move for Luigi mains. The only reason I hate is is because I don't main Luigi. ^_^