Are you having rabbit and duck for dinner?
Yeah.
Why?
Because I got too obsessed with hares.
Obsessed With Hares
Explanation
Explain Bear
Listen up, buttercup. This joke is a play on words. "Hares" sounds like "hairs." The dude is "obsessed with hares" (rabbits) and is also "obsessed with hairs." So he is eating rabbit, HA!