A childhood belief about rude bits

Back when I was going through puberty, my grandmother gave me a "what's happening with my body?" book which had information both on male and female bodies. Being a curious young girl who was also getting to be "that age," I naturally read all the stuff about boys' bits. One part was a section on circumcision, which had a crude illustration of two boys showering in a locker room, one with a penis drawn smoothly and one with a penis drawn with a little tip. The accompanying text described the foreskin as a "hood", but didn't really specify which boy in the picture was which. Since the book talked about uncircumsized boys first, and since the boy with the tipped penis was on the left and thus first, AND since the tip looked a bit like the hood of a jacket, I assumed that he was supposed to be the uncircumsized one. I pictured the foreskin as a big fleshy lump on the tip of a penis! It wasn't until much, much later that I realized I'd had it completely backwards!