Mystery girl: David I have all the cameras.*Sets cameras on the table*                                                       David: Here is your phone.*Hands her the phone*                                                                                                 Mystery girl: Thanks. Wait . . . what is this?*Looks at sticky note stuck to her phone* Wait . . . this is your phone number.                                                                                                                                                       David:*Nods head* I thought you might want to   . . . call me sometime.                                                     Mystery girl:*Picks up a different sticky note and writes her number on it* Here call me sometime.                                                                                                                                                                               David:*Blushes* Thank you.                                                                                                                                           Mystery girl: No problem. Now let's re watch the footage. oh and if you ever need help with a prank . . . call me.                                                                                                                                                                 David:*Still blushing* Ok.

So looks like David scored her number, but did she give it to him just so he could call if he needed help with a prank or does she have another reason?