[Pharo-dev] Interrupting processes question. Can method return be interrupted?

Look at example: methodA | result | result := false. [result := self methodB] ensure: [result ifTrue: [...]] methodB result := 1 < 2. ^result Imagine now that methodB starts execution in context of call inside methodA. Is it possible to terminate process at point of methodB return (^result)? In that case ensure block in methodA will perform wrong logic.