A: Hi, Tom. This is Hannah from apartment 4C. B: Oh, hi, Hannah. A: There is something wrong with my garbage disposal. B: Exactly what's going on? A: When I turn on the disposal switch, all I get is silence. B: When did this happen? A: Well, about a week ago is when it started sounding strange. B: Did you accidentally drop something in the disposal? A: No. I only use it about once a week. I hardly ever put anything into it. B: Actually, I've heard that too little use is bad for a disposal. A: Well, no one ever told me that. B: Did you try to turn it with the disposal key? A: I don't have a key. B: Well, I've got a spare key, so I'll come over to show you how to use it. A: Okay, come on over now, and show me how to use it. B: If the key doesn't work, I'll have to call the repairman. A: Well, if it doesn't work, it's no big deal. B: Yes, but if something's broken, I like to get it fixed ASAP.