What he doesn't know won't kill him.

vitamin deficiency: 비타민 결핍

to play a trick on somebody: 장난을 치다. (어떤 형태든지)

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He's on fire.

[일 같은 것을 잘 해내면서 잘 나가는 것 또는 화난 상태 또는 흥분된 상태]

You were just sleeping on the job.

[업무 중에 자고 있었잖아.]

No sleeping on the job.

You can't eat on the job.

[업무 중에 먹으면 안 되요.]

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The man waked up the the woman by playing a trick on her and saying the building was on fire.

That's why she responded as below

 

A gentle tap would have sufficed.

[살짝 치는/살짝 건드리는 것만으로도 충분했었잖아.]

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I don't think our boss appreciates[likes] you sleeping on the job.

[우리 사장이 업무 중에 자는 것을 탐탐치 않게/곱게 여기지 않을 건데.]

not to appreciate : 탐탁지 않게 여기다. 그거 별로 안 좋아해.

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What he doesn't know won't kill him.

[모르게 하면 되지 / 

Ignorance is a bliss. 

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I grabbed a couple of bowls, a bag of candy and proceed to pour a bit of candy into each of the bowls.

[candy: 사탕, 초콜렛 등 여러가지를 가리키기도 하다.]

proceed to ~: ~를 이어서 하다.

I proceeded to explain the idea in more detail.

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My brother didn't hear the sound of the candy falling on the floor.

I heard the sound of him walking up the stairs.

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I quickly picked them up ,not wanting to waste them, and brushed them off on my t-shirt.

[나는 재빨리 주웠고 아까운 마음에 t-shirt로 그것들을 닦았다.]

Not wanting to disappoint my parents, I lied to them.

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