After an altercation with a tutor, Design Academy Eindhoven graduate Yi-Fei Chen created this visual metaphor to show her personal struggle with speaking her mind.

Recently on display at Dutch Design Week, Chen's brass Tear Gun fires water collected as she cries.

Chen was born in Taiwan, where she was brought up with a strong sense of authority and taught that disagreeing with teachers was rude.

Because of this, she struggled to question her tutors when she came to the Netherlands to study for her masters degree – something Design Academy Eindhoven often encourages.

"The difficulties living as a foreigner in another country lead to high pressures in the study environment," she said. "Those pressures had been building for 18 months before finally reaching a crisis point during one of my midterm presentations."

During the presentation, Chen was asked by a tutor to prepare more work in a short timeframe – something she felt impossible.

However, she couldn't muster up the courage to say this out loud and went on to attempt to do the work. Soon after, she was sat in another presentation where the dean of the school told her she was underprepared.

"I was stage stuck and did not know how to react, but I did not say my thoughts aloud," she said. "Furthermore, the reason he was angry was that I might have misunderstood him."

When a classmate stood up for her and expressed her anger at the tutor's scalding, Chen felt that her "politeness became her weakness" and was overrun with emotion.

"I was too emotional to control myself, I could not hold my tears so I cried," she said. "I turned my back to the others, because I did not want people to see me crying."

Chen has now visualised this personal struggle with speaking her mind as a conceptual graduation project – a brass gun that fires tears she has collected.

This happens in three stages. The user first puts on a mask with a silicon cup that catches the tears. The tears are frozen in a bottle, which is then loaded onto the gun – allowing the frozen tears to be fired.

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At her graduation, Chen had the opportunity to point and fire the tear gun at head of department Jan Boelen. She took it.

Chen's Tear Gun project was on display at the Design Academy Eindhoven graduate exhibition at Dutch Design Week, which took place from 22 to 30 October 2016.

Also on show is Dutch designer Christian Heikoop's collection of flat-pack furniture assembled in the same way as a tent.