My cat, Tigger (aka Tiggy Boy), loves to clean out my yogurt container when I'm done eating my yogurt. As soon as I peel off the cover he's ready to have some yogurt goodness. When he hears me scrape the sides of the container, he knows it's his turn to have a yogurt treat.
He licks the inside of the container.
He dips his paw into the container and then licks the yogurt off of his paw.
He will spend quite some time trying to get the remaining yogurt within the container.
I never get sick of seeing him clean out a yogurt container.
That's my Tiggy Boy! :-)