[SkyDancer]

Must be a Guinness and he’s waiting for the foam to go down.

[Dr. Bogus Pachysandra]

“Must be a Guinness and he’s waiting for the foam to go down.”

Should have ordered Olde Frothingslosh!
“The foam is on the bottom.”

[Mercat]

It’s called the cascade. I send the glass back if the bar tender lets it be served before the cascade is done.