Can you solve it?

[Sneha]

Three men in a cafe order a meal the
total cost of which is $15. They each
contribute $5. The waiter takes the
money to the chef who recognizes the
three as friends and asks the waiter to
return $5 to the men.
The waiter is not only poor at
mathematics but dishonest and
instead of going to the trouble of
splitting the $5 between the three he
simply gives them $1 each and pockets
the remaining $2 for himself.
Now, each of the men effectively paid
$4, the total paid is therefore $12. Add
the $2 in the waiters pocket and this
comes to $14.....where has the other $1
gone from the original $15?