When I was little, I was HORRIBLE about getting shots. They literally needed about five doctors to keep me still, I was so bad about it. I did NOT want those bloody things! Even today, and I haven't gotten one in a loooong time, but I do kind of dread them and avoid them at all costs. The only reason I'd willingly go for any more of them would be for international travel. The excitement of a vacation would way override any dislike of getting a shot. ^^
Okay, honestly, it's not so much the FEELING of a vaccine that gets me...it's more the disgusting image I can't get out of my mind, of a needle sliding under your skin, that freaks me out.