Son: -hugs big sister who is roughly the same size as him- Me: awwww, that's so nice. Son: -knocks sister backwards onto chair- Me: less nice.... Son: -cuddles sister- Me: better... Son: -puts sister in an headlock because 4 year olds are frickin' feral- Me: Not nice! Not nice! Disclaimer: no sisters were harmed in the making of this experience. She's fine, folks.