Dungeons and Dragons - The Goose in D&D

Adding to it, I found something on Reddit that could be fun to mess with the players:

As you're walking through the forest, the sky goes dark as a massive genie appears in the sky.

"SPEAK YOUR WISH AND I SHALL GRANT IT." He says. An echoing honk could be heard.

"YOUR WISH IS GRANTED. FAREWELL." The genie says as he vanishes. Following where the genie came from you see a normal goose standing next to an empty lamp staring at the group. Everything else seems normal but you feel something is off regardless.