Last night I was watching my friend playing red on goldrush A. He spawned as a pyro and ran towards the cart. A red demoman runs around the corner in the opposite direction, but he's a bit odd. There is a blue disc of light pulsing from his crotch. Like a glowing hoola-hoop growing out of his groin and fading away after a second. A second red demoman and a red medic then come along and stop dead when the see the pulsing demoman. The glowing crotch man stops and everyone just stares at him for two seconds. The four people standing still the middle of the warzone. My friend taps the fire button and the demoman catches fire and dies and turns into a blue spy a moment later.