A little funny

Mother was out, and dad was in charge.
Their daughter was maybe 2 1/2 years old.
Someone had given her a little 'tea set' as a gift, and it was one of her favorite toys. Daddy was in the living room engrossed in the evening news when she brought him a little cup of 'tea', which was just water.
After several cups of tea and lots of praise for such yummy tea, mom came home.
Dad made her wait in the living room to watch her bring him a cup of tea, because it was 'just the cutest thing!'
Mum waited, and sure enough, here she came down the hall with a cup of tea for Daddy; and she watched him drink it up.
Then she said, (as only a mother would know),
"'Did it ever occur to you that the only place she can reach to get water is the toilet?"