Gingerbread house fall down

[xiphias]

So, I've been making a gingerbread house. It's nifty, except for the part where it falls over every time I try to glue the roof on. I think I'm about to give up, especially as Lis appears to be of the opinion that, if we DON'T build the house, she can eat it NOW, while, if we DO build it, she doesn't get to eat it until late January or early February.