![Why are you sitting
in the stairwell?
Why are you sitting
in the stairwell?](https://content2.mcqstudy.com/ss/tbbt-7-13-00:07:35.501.jpeg)
Why are you sitting
in the STAIRWELL?
The Big Bang Theory Season 7, Episode 13
![Don't look down if you're subject
to vertigo... and use their stairwell.
Don't look down if you're subject
to vertigo... and use their stairwell.](https://content2.mcqstudy.com/ss/tbbt-1-14-00:04:45.534.jpeg)
Don't look down if you're subject
to vertigo... and use their STAIRWELL.
The Big Bang Theory Season 1, Episode 14
![The door to the stairwell
of the other building was locked.
The door to the stairwell
of the other building was locked.](https://content2.mcqstudy.com/ss/tbbt-1-14-00:08:47.442.jpeg)
The door to the STAIRWELL
of the other building was locked.
The Big Bang Theory Season 1, Episode 14
![Stairwell.
Stairwell.](https://content2.mcqstudy.com/ss/tbbt-3-2-00:11:28.586.jpeg)
Stairwell.
The Big Bang Theory Season 3, Episode 2