Originally Posted by obscure2k
Order it "animal style" with raw onions, in addition to the grilled ones. Now, that will be an aroma your car will never forget.
Here's the whole "secret menu":
http://www.in-n-out.com/html/frm_secretmenu.html
although I happen to know that the 4x4 is not the highest amount of meat one can order (think 10x10).
Another way to torment your Lenten friend would be to arrange for this vehicle to pick him up:
http://www.in-n-out.com/html/frm_b5.html