Habitual pantang
When you're so used to being a scaredy-cat that you act like you believe in ghosts just to avoid getting yelled at.
'I don't think ghosts exist, but I still say I'm scared of the haunted house.'
'I don't believe in bad omens, but I still wear my lucky socks on the first day of the month.'
'I don't care if it's just a superstition. I'm not going near the fifth floor on Friday.'