Wow really?
Its kind of weird but I tend to laugh

when I get draw blood or get vaccinated even though it hurts alot....
So does my older brother..... I reall yhave no idea why (there's nothing funny about it...but I just start giggling or smirking)
My Dad Hates needles like that too
When my brother was going to have surgery, they needed someone form the family to donate blood and the only ones who could donate were myself and my dad and He immediately refused

so I guess I had to step up to the plate.