"How was your day?"
"It was great."
"What was so great about it?"
"I saw a puppy."
"Awww."
"And I ran over it :)"
Great Day and Puppy
Explanation
Explain Bear
Alright, listen up, buttercup. So, this dude asks about the other dude's day, right? The dude says it was great 'cause he saw a puppy. The first dude is all like "awww," but then the second dude reveals he ran the puppy over! It's funny because it's messed up and unexpected, you walnut!