Cracking seeds

I roasted some sunflower seeds. I was cracking them open with my teeth and sharing them with Erin and Jill, but the whole process of biting them and them taking them out of my mouth to give to another person got old pretty quickly. I discovered that pliers work great for cracking them. If you put the seed on-edge in the wide spot, and crack it--
the shell breaks, but the pieces don't go flying everywhere.