Late afternoon. Lennie comes to the river. His dead Aunt Clara appears and scolds him. A huge imaginary rabbit tells him George will leave him. George shows up and reassures Lennie. While they talk of their dream, George puts the Luger to the base of Lennie's skull and fires. When they see Lennie everyone assumes George took the gun from him and shot him. Slim says "You hadda, George," and takes him for a drink.
from "Of Mice and Men"