Yep. I think often it is a personality clash between the caregiver/adult and the 'annoying' child. Others may not be bothered as much but yes some kids are just really, really annoying. It's unfortunate, I do think that often they can be taught, even from a very young age to curb those behaviors that 'annoy' others and that by having parents and caregivers that try to teach them to be less "annoying' they will have a much, much better childhood and will do much better as adults. BUT, only so much can be done!