Well unless your brain is located inside your arm, I don't see how a broken arm would affect your grammar (notice the spelling).
And as I recall, you said "what are you on?" (except with simply atrocious spelling) which, in today's modern society, is commonly used as a drug reference.
Do me a favor: move your finger over to the left shift key, you know, the one you use to type capitalized letters and special symbols? Alright, now move your finger one key above that one, the little rectangle that days "caps lock". Found it? Good. Now just push down on that and PRESTO! you can type like a normal human being now! Isn't that just dandy?