SHINee's Key revealed his fear of phone calls. 

On the March 13 airing of KBS2's 'Problem Child In House,' the members solved quizzes. One question regarded anxieties, and Kim Yong Man asked Key if he has any anxieties or fears. 

Key answered, "Not an anxiety but my heart races whenever I get a phone call." He explained, "I'm afraid of all phone calls except the ones from my parents. I feel like something will happen if I get a call." 

He also added, "You can think for a moment when texting but you have to speak right away on a call and be responsible for your words."