Why is the "holy thief" with high martial arts in Legend of Wulin still afraid of catching Xing's head?

Bai Zhantang, a thief with high martial arts skills, is afraid of Star Pig's Head because although he is a Taoist sage, he has already retired from the Jianghu, or he has retired from the Jianghu. He chose to be a very stable person in the Wulin rumor inn, and also met the shopkeeper child in this inn, taking her as his love and lifelong companion.

So for such a situation, when his wife has signs, he certainly won't think about running around. If he exposes his identity as a thief or martial arts, he may be chased by Xing Shoutou, and then some of his stable lives will not be as stable and happy as before.

And he has completely fallen in love with Tong shopkeeper in the days of fighting with Tong shopkeeper, so he doesn't want to expose himself or get hurt by Tong shopkeeper, so he chose to hide himself from being discovered by Xing Catcher, because Xing Catcher still has his ability to hunt. If his ability is exposed, I believe that the catcher Xing will recognize him as a thief, so he will be hunted and displayed, but not.

And for the development of the plot, it is impossible for him to show some of his deeds and let Xing Catcher catch him. If this is the case, there will be no subsequent plot development, so I think this is also one of the reasons why martial arts thieves are afraid of Xing Catcher.