My roommate keeps asking me if she can do things after she has done them.
After sticking her size 8.5 foot in my size 7.5 pumps. "Is it okay if I put my foot in it?"
After coming in my room. "Is it okay if I come in?"
After grabbing my charger and plugging her phone in. "Is it okay if I use your charger?"
It's as if an unnecessary politeness circuit triggers in her brain after the fact. I can't complain though - her hair cream and flat iron live permanently in my room.