[spinlock]

This reminds me of a job I had while starting my first business after college. I was a bar-tender for a catering company. We did a lot of fancy parties so a big part of my job was pouring Champaign and putting it on a tray for the servers to pass around. After a few months, I could pop a bottle and pour six flutes that were all exactly the same height without leaving a drop in the bottle.