Why was Stephen Hawking disappointed when he got his Christmas present? It was singing lessons.
Hawking's Christmas Gift
Explanation
Explain Bear
Alright, listen up, buttercup. The joke is that Stephen Hawking, bless his soul, couldn't sing because he had ALS, which messed with his muscles and made it hard to speak, let alone belt out a tune. So, giving him singing lessons? That's like giving a fish a bicycle. Get it now, genius?
Anonymous
Pair of roller skates.