I'd do that, unless the border people hold me up for suspected possesion of 'cartridge bombs'. ("That cartridge is unstable! If you put it in the console, it'll explode!" "Come, on! Even if I did put a bomb in it, all it'd do is make a loud bang. It's not big enough to hold any sort of lethal weapon." "Bangs scare people! Sometimes loud bangs are the worst! People panic and run in circles until their head hits a wall!")
Not that that'd probably happen, but it'd suck if it did. (While I'm at it, I'd give you my mm zer 3 cart. I'm not gonna play it anymore, so you could keep it.)