Glass bridge

Death

Gryffindor: Chooses wrong glass.

Hufflepuff: Sacrifices and dies with someone who refuses to go ahead.

Ravenclaw: Loses against the probability theory.

Slytherin: Gets sacrificed for refusing to go ahead.

Survive

Gryffindor: Chooses right glass.

Hufflepuff: Hops after everyone after choosing the glass.

Ravenclaw: Recognizes sturdy vs weak glass. 

Slytherin: Pushes other out.