No there not they just make a big BANG!!
Not expecially, though the explosion of the small bits of gunpowder can cause small burns and can be a hazard to the eyes.
No, cap guns are not banned from Canada.
Cap guns are illegal in Rhode Island.
Cap guns, yes, but not the caps to go with them.
No I checked they do not sell cap guns but you can get one from the Dollor store.
Cap guns don't have bullets.
They are not dangerous by themselves. To be dangerous to anyone, a person has to be invloved.
Loss of hearing.
yes
Toy stores
No such thing as blank ammunition for a cap gun.
Yes
If used incorrectly, yes, they can be very dangerous.