A second shift thief

In the office area I work in, we have a toaster oven for the use of about a half dozen engineers. One of us brings in a roll of aluminum foil that we all use to cover the cooking surfaces in the toaster oven to help keep it clean. Twice now in the last 2 months, we come in to find the roll of foil has disappeared. Who tf is feeling the need to steal a roll of aluminum foil? Nobody here is underpaid. Wtf, gonna airtag the next roll.