He may have played all kinds of characters and filmed all kinds of scenes in the more than 100 films he's done so far.
But Hong Kong superstar Andy Lau still draws the line at one thing.
"Take off my underwear," the 52-year-old veteran actor said to laughter from the local media when asked what he'll never do for his craft.
He was not kidding.
In town to promote his latest movie Firestorm with fellow Hong Kong actor Lam Ka Tung, Lau gave the example of what he felt had already pushed his limits: a scene he had filmed with Taiwanese actress Jacklyn Wu in Hong Kong flick A Moment Of Romance (1990), where he ran about only in his briefs.
Speaking at the group interview held at the Marina Bay Sands Expo and Convention Centre yesterday, Lau revealed other things that he would never compromise on, work-wise.
For one, he's always working "towards high standards" for all his movies, even on his rest days.
So there's never time for leisure activities that normal people indulge in. Said the self-confessed workaholic: "In the last 10 years, I have never had a cup of coffee at a hotel.
"I'm the kind of person who likes to go home immediately after work.
"I don't go shopping and I don't go to the cinema as well.
"Actually it's only when work becomes your hobby that you will love doing it. For me, that's the case."
Lau said that unlike him, fellow Hong Kong actor Eric Tsang is constantly late for work but he would be punctual for his golf games - even if they are at 5am.
Lau would also never compromise on his safety during filming.
In Firestorm, which opens here on Dec 12, Lau plays a senior police inspector who is determined to bring a gang of notorious criminals to justice.
In one scene where he performed his own stunt, he leapt off the 11th storey of a building.
Said Lau: "I have always thought about my loved ones and being safe is the responsible thing to do.
"Actually nowadays, filming dangerous scenes has become much safer.
"In the 90s, when we jumped from a high place there would be only one safety cable, but nowadays I have four safety cables attached to me."
Does he have a negative quality?
Yes, he has a bad temper which he feels he should try harder to keep in check, Lau said.
"To me, it's about doing the work to the best of my abilities, so sometimes I lose my temper on set.
"The next day I'll be on set and asking everyone to forgive me," he said.
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