Oh... Kinda weird if poopoo was hot enough to create steam, wouldn't want to get that on my hands, but if it is just the smell of expired beanpaste... who cares.
What i think is happening is that she is trying to get her father to notice her, hoping he will come back to live to punish her for making a big mess by pooing or something like that... I don't know japanese though, so i don't really know. :P