Putting them in a situation where the group mentality promotes murder and other immoral things. Fe doesn't want to go against the general group climate so that could lead to a fe auxillary taking on the same mentality if around the wrong group for a long time. They would know it was wrong at first so the guilt aspect would bother them.
Trying to force beliefs down their throat.
Invading their personal space, not giving them any alone time. Guilttripping them for needing a break from people.
Make them the bad guy and play the victim in a situation where the blame is either equal or they are not completely to blame.
Try to convince them to do an activity or spend an elongated period of time in an overly crowded area. Because of inferior se, claustrophobia, and the overwhelming atmosphere, all of those emotions and surrounding things for fe to take in, it's a lot. A lot of things going by very fast, and overwhelming to take in all of it. For someone who is terrible at being in-the-moment, an environment like that is a living Hell.
Talk to them about topics they are not interested in. An INFJ will engage in the topics, wants to get to know the other person, takes interest in the other person, but excessive talk about uninteresting topics can be draining.
Tell them that their interests are wrong in some way or another.