Not a duplicate of MC-147516

Sometimes piglins could momentarily stop looking at their targets when blocking with a shield for a while or with attributes, you coul just summon a piglin with a negative value of attack damage so that it won't do any damage.

How to reproduce

1. In the nether:

    /summon piglin ~ ~ ~ {Attributes:[{Base:-100.0d,Name:"generic.attack_damage"}]} 

2. Go to survival mode
3. Do F3 + B to show hitboxes
   → Just stand there while the piglin attacks you without doing any damage. They'll sometimes forward then looks at you (Notice the blue line of sight).