Tasty Sweeties?

Tasty sweeties?

Cleaning out the guinea pig
I use the plastic scoop 
I fill a bag from out my drawer
half full of finy pellet poop

My mind is side tracked at same time
A friend calls at my door
I knock the little bag of stinky
On my kitchen floor

Well hours go by
I make our food
I’ve made his favourite
He says its good

So we are sat watching TV
He is sat eating his sweets
I say “What are you munching”
“Oh its those little tasty treats”

I said “My God” I start to grin
He looks over from his chair
I suddenly guess whats in his bag
Brown stuff dribbled down his chin ?