It could be the last thing you ever do!!
Several people have died by falling from their harnesses after forgetting to fasten their legstraps. Hanging helplessly by their armpits for a couple of agonising minutes, they let go.
If this should ever happen to you, remember this sequence.
OH S**T !
GRASP THE RISERS
WITH YOUR WEIGHT ON YOUR ARMS, SWING YOUR LEGS THROUGH AND UP ...
... AND HOOK THEM AROUND THE RISERS AND LINES. PULL THE SEAT BACK UNDERNEATH YOUR BUM
SWING BACK TO NORMAL POSITION AND FASTEN THE LEG STRAPS!
Practice this manoeuvre by hanging your harness quite high, and then not doing up the legstraps when you get in. Kick the chair or bucket away and slide out of the seat. Hang by your armpits and follow the above instructions.
From the "Paragliding Direct 1998/9" catalogue (Northern Paragliding)