Set out your hurdles set out in a zig zag formation.
Players go one after another and have hop over the hurdles.
Once completed players must sprint back to the start and then repeat, this time hopping on their other leg.
With older players, a player who knocks over a gate could be made to perform a punishment, such as 10 press-ups.
World Rugby has reportedly conceded Aaron Smith's disallowed try in the World Cup final should have stood.
"It is not only useful for staff who are experienced but a valuable tool for those subject staff who have to take teams."
The variety of sessions across sports - sometimes we steal session ideas from one sport and use them with another.