At the start of the Vancouver Bike Rave, a pretty young girl on a decorated cruiser got a flat. Someone in my group pointed her in my direction because I was showing off my new Lezyne pump earlier. Turned out it was an led light that screws onto a Schrader valve stem that was depressing the core. A quick air up and a free glo-stick and she was on her way. I received a peck on the cheek and a hug for my troubles.