Because none of the parenting books mention how to deal with situations like this 
I came down to leave for work early this morning and found a small drawstring bag on the worktop. I looked in it and found a rather large, shiny item. Which was not what I expected over my cornflakes.
There's only me, DH and DS (nearly 17) in the house. It's not mine or DH's so I messaged DS and asked if he was missing anything. He's basically admitted it is his and the conversation was very light and non-committal, but I was somewhat at a loss for what to say. I have no desire to know the ins and outs (excuse the pun) of it but simply requested it didn't live on the worktop. He said he thought that was best and we agreed to forget the conversation had ever happened.
I imagine he's mortified (thank god for WhatsApp) but should I be doing or saying anything else?
FWIW, I hid the bag so DH didn't find it so it's only me and him who know. I'm not convinced this is a conversation DH and I really need to have if I'm honest 