It's clear I don't know how to make a wrap (sandwich). I have all the same ingredients that they used in that shop where I got lunch when we were on vacation, including really really good hummus from a recent issue of Cooks Illustrated, but maybe my tortilla is too small. I mean, it's not supposed to disgorge its contents from the ends, is it? Would it be cheating to use a rubber band?
Come to think of it, I also have problems with pareos, sarongs, and saris. I always want a lot of safety pins and wonder how they manage without velcro. A bandana is about my speed.
So it's natural that I recently got a book on knot tying. Soon I will know a sheep's shank from a two-handed bend. I will one day have the most secure wrap sandwiches in town; they won't even need plastic wrap.