Actually, you have to be a little bit in love with your leading man and vice versa. If you're going to portray love, you have to feel it. You can't do it any other way. But you don't carry it beyond the set.
American stuntmen are smart - they think about safety. When they do a jump in a car, they calculate everything: the speed, the distance... But in Hong Kong, we don't know how to count. Everything we do is a guess. If you've got the guts, you do it. All of my stuntmen have gotten hurt.