Bertie is our second boy who does that...I've never had a head butting boy, but all my girls will use their head to force a pet.
You should try a boy!There is an overwhelming amount of people on almost every thread that debates about sex preferences that seem to say males are superior. I am going to have to get a male sometime to see if they really to stand up to the hype! In the meantime, I am going to keep on adoring my little girl. Maybe she is one of the AMAZING ones! No "head-butting" except when she wants me to flip-over her bone when she wants to chew the other side -- yes, she likes when I hold her bones for her while she chews -- quality bone time -- families that chew together stay together!