Sounds like we are the same person. I'll also add my general rule is:
1st time (which is after MANY warnings) you bring it up front and I give it back after class
2nd time - you come get it afterschool
3rd time - I turn it in to the office
And each time I remind them of the page number in the campus student handbook (that they have not looked at) that says I can take it away and that it should go to the office the first time.