"O.K.," said George. "An' you ain't gonna do no bad things like you done in Weed, neither."
Lennie looked puzzled. "Like I done in Weed?"
"Oh, so ya forgot that too, did ya? Well, I ain't gonna remind ya, fear ya do it again."
A light of understanding broke on Lennie's face.
"They run us outa Weed," he exploded triumphantly.
"Run us out, hell," said George disgustedly. "We run. They was lookin' for us, but they didn't catch us."
Lennie giggled happily. "I didn't forget that, you bet." (1.50-55)
Lennie obviously has no concept of consequences, since he can't even remember the wrong that he did. So we have to ask: it just for George to keep dragging Lennie around with him? Or should George have taken action before Lennie ended up killing someone?