Eating the red berries is showing somebody that it's safe to do something.
This phrase derived from how a monkey won't eat the red berries unless they see another monkey eat them.
When somebody is being forced to do something and don't want to do it, eating the red berries would be doing the thing for them then telling them it's safe to do.
Child: No! I don't want to eat asparagus!
Mother: You have to eat them! They are healthy!
Child: They look gross!
Mother: Father, help me out here!
Father: Fine, I guess I'll be eating the red berries.
(Father eats some asparagus)
Father: See? It's healthy. Not the tastiest thing on the planet, but it's tasty enough to eat.
(Child eats some asparagus)
Child: Oh hey, it's not that bad!
A Shackteau is a humble, weather-beaten, structurally questionable shelter located in a spectacular or highly coveted place—Wales, Jackson Hole, Sun Valley, Crested Butte, coastal Maine, the Alps—where the building itself may be worth almost nothing, but the dirt, view, access, and mythology make it absurdly valuable.
In use:
Shackteâu - We thought it was an abandoned shed until the realtor called it a rare alpine Shackteâu with unobstructed views and listed it for $2 million.