Lin Yu had no intention of doing anything to make his teammates "lose control of their emotions."
For one thing, Fu Luo was in the team, so Lin Yu still had to be wary of him. After all, Old Yao's identity was ultimately nothing like the Director's, who had an extremely high reputation score with Fu Luo.
As a friend's friend and someone who had helped him once, Old Yao and Fu Luo were still somewhat unfamiliar with each other.
There was nothing unreasonable about Lin Yu's appearance, but if Fu Luo really investigated it, it definitely wouldn't hold up perfectly.
If Fu Luo truly became suspicious of him, it would be more trouble than it was worth. After all, Lin Yu had already explored this ruin once and knew there would be plenty of opportunities for him to show off.
Secondly...
Lin Yu was also certain that these people didn't have particularly good emotional control.
Although they were doing their best to remain calm at present... the more they cared about controlling their emotions, the more likely they were to suddenly lose control and explode at some point.
Especially in an environment under such intense pressure—people found it very difficult to overcome their own "instincts."
"Emotions" were also a kind of instinct.
Most people didn't understand their own brains, thoughts, or emotions at all, and they couldn't control their thoughts and emotions either.
After all, emotions were influenced by hormones. That was simply human nature.
Especially negative emotions!
There was no need to mention haunted houses or going alone into the wilderness at night. Even after watching a horror movie and lying in bed, how many people could truly slam the brakes on their thoughts when they told themselves, "I'm not afraid" and "Don't think about the horror movie"?