Fifteen lads on each side and nobody outside Ireland can quite work out the scoring.
Fun fact: Every player in the All-Ireland final, watched by 82,000 fans, is an unpaid amateur with a day job.
Spinning round holding a metal ball on a wire and then just letting go, what could go wrong.
Fun fact: The "hammer" is a metal ball on a wire and hasn't resembled an actual hammer since the 1800s.