Funny?

I am trying to decide if I am becoming a grumpy crank regarding jokes about wheelchairs. Not from my friends or family.

Earlier this week, I watched The Big Bang Theory. Leonard was on his way to a boat in the North Sea with Stephen Hawking's team to research some science thing. But Penny was concerned, Won't Professor Hawking just roll off?

Really, is she that dumb? Wheelchairs have brakes, and boats have railings. Plus,   Hawking wasn't going; his team was.

It seemed like a silly and lazy joke. So I tried to come up with another line that would work. It wasn't easy. The only thing I could come with is

• "What if his wheelchair rusts?"
• "Won't it be hard to use his voice thing if he is wearing gloves?"

But the second suggests that the North Sea is real cold, but it is not.

I still can't decide if it was a funny joke.

I did laugh at Modern Family's joke involving a wheelchair the other day, but that was not so much about the chair.

Haley was mocking a community college brochure's standard diversity photo and said, wow, that guy in the wheelchair is really cracking them up.

So I just don't know.