Like when you're removing a bolt that is used to mount a fan relay and you drop it and it COMPLETELY DISAPPEARS. Then when you cool off (two days later) and you're looking at that LITTLE open area between the side of the battery and the battery tray and you think, "no way." Yup. Pull the battery stay-down bracket off, cock the battery to the left a little and viola...there's the FN bolt. Fun times.