Okay, what are the best Guiness alternatives?
Whiskey
Murphy's Irish Stout.
It beats Guinness hands down. With or without fish bladders.

10 Craft Beer Alternatives for Guinness on St. Pattyâs Day
http://drinkwiththewench.com/2013/03/10-great-craft-beer-alternatives-for-guinness-on-st-patricks-day/
1. Brooklyn Irish Dry Stout
2. Moylans Dragoons Dry Irish Stout
3. Boulevard Dry Stout
4. Shortâs Uncle Stevie Irish Stout
5. Starr Hill Dark Starr Stout
6. North Coast Old No. #38
7. Sprecher Irish-style Stout
8. Avery Out of Bounds Stout
9. Bison Chocolate Stout
10. Saranac Irish Stout
Vegemite and warm club soda...
Most anything from Belgium.
They will most likely switch to the wine industry standard, bentonite clay, (kitty litterl.
Killians Red. Sam Adams. Singh (Thai beer).
Actually, when I visited Ireland I was disappointed in Guiness. I'd never had it before, and don't intend to drink it again.