Gotta love facebook……
Check it out:

A 41-year-old man and his 20-year-old son were stabbed and beaten and ended up in the hospital after a fight involving up to 30 people that police say was organized ahead of time on Facebook.

Police in Sydney, Australia arrested at least three people they say participated in the fight held near the suburban Sydney Rouse Hill shopping mall.

Two men, ages 20 and 18, as well as a 15-year-old were detained. The 20-year-old, Glenn Shillingsworth, was denied bail. Police claimed he was an organizer of the fight, using Facebook to gather participants.