'I don't want to hear it' rather than 'I don't want to here it' but this is really old so... yeah. It's great though. I love the two characters. They're both so stupid and I found this rather amusing so good job.
I totally agree with Lexi. The feeble end spoils the whole script. That's really frustrating. I mean, it should end there :
Emma wrote:Jamie: Now this explains why the car key wouldn't open the door... Bob: I think so...
That would be perfect this way, it stands as a good and hilarious punchline, no need to disapoint your reader by adding this utterly useless ( and not even funny) end.