If the non-ramirez entity has any sort of offensive powers, trying to kill or restrain it might yield a worse outcome. Like, you try to tie up the one inside and it decides the cat is out of the bag, so it bursts out of its skin suit and strangles you.
Ah yes because famously the good samaritan paid the innkeeper with fake money. (Not that I expect most self described christians to know any of their bible stories with any accuracy or detail)