Funny thing happened while I was stationed in Alaska. One winter while I needed to get my A/C off the ramp and into the hangar my asst and I was crossing the main runway well it had snowed and iced a certain part of the runway and the tug had lost traction. He tried to get it rolling I finally fired up the I/B engs and we scooted into the hangar. When we made it in my asst was white as a ghost he told me that was one scary feeling to have that much power being behind him. I cant blame him I wouldve been scared too any other stories Id like to hear them.