I was driving past a mental asylum

I was driving past a mental asylum when all of a sudden my tire comes off and rolls down the hill along with the nuts. I was so angry I started cussing on my way down the hill to collect the tire because I couldn’t find the nuts, which grabbed the attention of someone in the asylum, he said I seen what happened, why don’t you take one nut from the three remaining tires and head into the to a repair shop? I was surprised, it was a good idea, I asked the man if he worked at the asylum and he said he was an inmate. I asked what he did and he said I can’t tell you but I can show you, he said I have been working with grasshoppers and I think I have an award winning theory, watch this, the inmates pulled out a match box an opened it, he then said “jump out” and the sure enough a grasshopper jumped out, I was so amazed, he then said “jump in” and sure enough the grasshopper jumped right back into the matchbox. I said to the inmate, that was really impressive but it doesn’t explain why he is in an asylum. The inmate said you didn’t let me finish, the inmate picked up the grasshopper and pulls off its legs and lays it down. “jump in, jump in” - see said the inmate, my theory is if you pull the legs of a grasshopper it goes deaf.