Fifteen years ago, give or take a week, I was riding the number 15 bus from Pioneer Square to Interbay and I caught the guy across the aisle checking me out. Being young and naive, I politely engaged in conversation with him, and it turned out that we had a lot in common. Even when I tried to scare him away by announcing my plan to stop at army surplus to buy a knife on my way home, he was thrilled and offered to join me…