squeamish dads and c-sections...

So my husband claims to be squeamish and thinks he's going to pass out during my c-section. I'm pretty sure he's just nervous because I've seen him watch some pretty gross stuff on TV or in movies and be fine when I'm the one who has to turn away... so my question is how much can he actually see and do you think the adrenaline of it being his son being born will distract him from the "grossness" of birth?!