When the Parasite was posing as Lois (a sequence which was...incredibly weird, and someone should post from it if they haven't already) fake!Lois complains about waking up to the smell of burning hair every morning. I suspect it smells terrible, but Lois loves it because it's a part of living with the man she loves, like someone loving the smell of grease on the hands of a mechanic they're married to.