Headbutt

Belgian man stole laptop and headbutted policeman after drinking session at Holland Village bar
2 Singapore Premier League teams charged by FAS after headbutting incident
Man suffers bloody face after he's allegedly headbutted during football game at East Spring Sec
Thai man tries petting giraffe in zoo, quickly learns how painful a headbutt is
Unfilial American son throws pork chop and headbutts 60-year-old mother for not getting him cigarettes