Misbegotten Pecan Bars

Dammit.
Why does everything require an 8 X 8 pan now? CRAP! I had these pecan bars (like a pecan pie) only a bar thing that I was making to take to Kurt's for Louis and Lily's play date and DAGGONE IT it required a stupid pan I didn't have.
I have SUCCESSFULLY built a dam about of aluminum foil many a time though. I know how to bank up the crust against the foil.
FAILURE.
My delicious treat ran all out one side while I had to run to the bathroom with Louis. I had been watching it carefully as there had been MINOR spillover but I had propped up the pan with foil so it leaned a bit to the good side. Alas.........there will be no treats taken to Lily's for our playdate. I cannot describe how sad it is to see the gooey sweet center all leaked over to the WRONG side of the pan.