When you first install Second Shootr 1.2, you are asked whether or not you want to install the Sample Client.  But you don't have to install it there and then, you can add and delete the sample client whenever you wish

iPhone & iPad:

1. Load up Second Shootr
2. Go into the Settings module
3. Tap Sample Client
4. A new wedding client called Rebecca Jones & Simon Phillips will now exist in your clients list.
5. To delete the client, simply swipe from left to right over their name and tap the delete button.

If you're still unsure on these steps, either ask in the forum, or create a new ticket to contact support