How To Tube: Getting It Right in Disciplines October 8, 2016 I'd say that talk to the controller when he is driving the tunnel is really not a great idea. Especially when first-timers are in the tunnel or something like first headdown lift-off happens. Last thing I want is someone who want to know where is his beloved coach right now or where he could get duct tape. Please do not do that. All tunnels are different, of course, and every place have its own rules.