In "The Breakfast Club", principal Vernon believes that the kids have turned on him and have became more arrogant. He fails to acknowledge his own faults as a principal. This can be explained by:

self-serving bias

Explanation:

Self-serving bias refers to the propensity to associate adverse circumstances with external causes, whereas favorable events are the cause of personal credit. In other words, people attribute success to personal qualities, while they blame outside sources for their failures. As a result, in "The Breakfast Club," Vernon cannot accept his wrongdoing as a principal and holds the children responsible for being arrogant and misbehaving.

the objective should be switched

the answer is subjective. i personally agree with the first answer for this question.

if one isn't strictly talking about objects then the correct answer would be 'my eyes' since according to this riddle i am asleep and in order to answer/open the door i need to open my eyes first of all.

however, if one is specifically looking for an object, then the first thing i would open would be the door

hope this !