I have two younger brothers, one of which is terminally ill. While he was in the hospital, I babysat my youngest brother constantly, doing everything from feeding him, changing diapers, putting him to sleep, and house cleaning. My brothers are on opposite ends of the spectrum, one being wide open and courageous, and the other being very timid and scared of basically everything. Growing up with the family I have, I've learned to be clean, attentive, and patient, especially since my brother is still battling with his health problems and learning disabilities.
I have also baby-sat for two other families who go to church with us.