Concentration required

Then it spills and all hell breaks loose

I've always found it easier to carry it underneath, in the middle, like a waiter.

I don't know about you. But I put my ice in the freezer

One of them ? Try three stacked on top of each other

Wait. People actually have to concentrate on this? It's like anything one does! Do it enough times and you don't make mistakes!
Except sex. Men always screw up. Just ask any of your ex's.