Weird calls..

Random kids are finding it amusing to call me from an unidentified number and ask me silly questions... I am beginning to wonder if my cousins have a hand in this (after all, last year the oldest (11!) called me at four in the morning and said 'Hi, it's Hallam.... (big pause, giggling from friends) I think you're fit!') Maybe they've learned that, when making prank calls, introducing yourself is not a good idea?!? Hmm....W