My Goats all loved to play this game ... There heads are very hard as this is what they naturally do... I used to jokingly ride my Nubian wether ( not putting ANY weight on him) and it never hurt him... I raised and showed goats for 6 years with no ill effect my goats have butted me before but that what i get for sticking my head down in There home... And if the OP does get hurt I am sure he will not take it out on the goat... He will realize it was his own fault..