Re: WPA-PSK cracking help
The "winning a bet" excuse has always been one of my favorites. Just as a gentle reminder to everyone else here - saying this immediately makes the moderators think you are going to be trying to break into networks without permission.
Many of these questions have already been asked and answered before, so at the very minimum I suggest you do some more research on the subject before asking questions like this.
Re: WPA-PSK cracking help
I personally like the "My typing teacher at school asked me to try and break into the network...." one.