just because I was in someone's house and it wasn't mine, didn't stop me when I was drinking.
I like the crutches reference too.
But I seemed to think from your original post that you were actually planning to drink - unknowingly in your head.
It's kinda like, 'I know it's going to hurt when you pull off this band-aid' versus, 'It will feel good to finally have this band-aid removed'.