I asked myself is it possible for someone to joke about certain disabilities in a non-malicious way? And I think yes.
I'm sorry if it doesn't sit well that my reaction to someone shouting random swear words is to think that it's humorous.....
....they may swear,squeak and click but they're still normal folk and I'm pretty sure they wouldn't want folk to feel like other folk were pitying them because of their condition (maybe I'm wrong).