By Caroline Gluck
BBC News, Taipei
A Taiwanese legislator could face disciplinary action after spraying what appeared to be tear gas during a parliamentary committee hearing.
Mr Lee is known as a political maverick
Independent legislator Lee Ao, who was trying stop debate on a controversial arms bill, also pulled out a stun gun.
Mr Lee caused a commotion after putting on a mask and spraying gas from an aerosol canister into the packed room.
Although his actions worked to block the discussions, he could be suspended for violating safety regulations.
"I'm an old man and I can risk my life," said Mr Lee, 71, who is also a candidate in the mayoral elections in Taipei in December.
He then brandished a stun gun, setting off a warning alarm.
Some legislators were clearly shocked; others laughed, while more started coughing and began running towards windows and the exit doors.
After all the commotion, the committee then blocked discussion of the arms bill, which has been held up for the past two years.
The bill would allow billions of dollars of arms to be purchased from the United States.
The opposition parties have argued that the multi billion dollar arms purchase of submarines and anti-submarine aircraft from the United States is unnecessary and too costly.
Analysts have warned that Taiwan needs to boost its defence spending to prevent the military balance shifting further in China's favour.
While Lee Ao's antics appear to have succeeded, they have left some legislators furious.
He could now be referred to a parliamentary disciplinary committee, which has the power to suspend him if it rules that he has violated safety regulations.
Mr Lee is often described as a political maverick.
He is a respected writer and a popular television personality, well known for his acerbic comments and controversial views.
But his latest actions, which have now become headline news, are being seen by many as a step too far.