When my son was around 10 he used to do a voice for the family dog.
One day, shortly after I had spent the better part of a weekend planting a rose garden, I let the dog in from the back yard and his front paws were covered with mud.
As I grabbed a towel to wipe his feet I said "What have you been doing?" and I heard a voice from around the corner say "Weeding"
I started laughing so hard that the dog walked right past me and tracked mud all through the kitchen.
Needless to say, aforementioned son had to help clean the kitchen floor as well as repair the damage to the garden.