An out-half requires a steely nerve. Kicks out of hand, and from the tee, need to be made at crucial points during the game. Their channel is also the subject of serious pressure from the opposition. Get to the number ten and the game could be yours.
The stomach required of a number ten is something Paddy Jackson has in abundance.
It's not just on the pitch where Jackson needs to use that nerve. It's also during promotional videos for Ulster.
Jackson put in prank call to Ulster Director of Rugby Les Kiss querying the Aussie if he wanted to purchase season tickets.
The catch: they would cost Kiss £3,000
Somehow, despite the odd grin, Jackson held it together.