Have they ever run out of Guinness on St. Patrick's Day?

So when I was diagnosed with Celiacs, as a lover of dark beer this was one of the things that really bummed me out...and then these awesome people invented this....(If you're a wheat intolerant beer lover, do not hesitate!)

I took a tour of the Guinness brewery in Dublin. Despite having zero interest in beer, I still thought the tour was great.

No, I don’t think so.

I wanted to make some Guinness punch (a Jamaican drink) but I never got around to it. So I have a six pack of Guinness stout, untouched. I don’t know if it’s suitable for the punch.