A new unopened pack, well in date.
In the household we have DH and two teenage DSs,but I can't for the life of me think why they'd be in the kitchen, regardless of who they belong to.
Right at the back of the miscellaneous drawer. You know, the one with batteries, odd keys, rubberbands and various things that might come in useful one day. It's not a drawer I go in often but it's possible I could look in it on any given day so not a very good hiding place.
If I ask , I'm not going to get a straight answer. Boys will both be v embarrassed and deny all knowledge. DH is only likely to own up if there's a legitimate reason and although I have no reason to suspect anything, I can't think of a good reason.