Liz,

My older one, Spike, does that too.....he LOVES being on peoples shoulders, & of late, he has taken to trying to jump from the chair arm, or wherever, ONTO the shoulder....more then once, if they have 'dodged back' instinctively, he's fallen short & they have ended up getting raked much the same way as you have (How do I make an Appointment to View, btw?....*G*)