DS4 goes to his dad's 1-2 times a week when ExDP can be bothered (often palmed off to his parents).
I know he is a heavy cannabis user and smoked cigarettes the last I was aware. I have smelled cannabis in his house from the front door recently.
DS returned this morning with a bag containing some clothes that had been at his dad's and they stink of smoke. I could smell them as soon as I picked up the bag.
Definitely cigarette smoke but I don't think it was a cannabis smell, although I can't be sure.
Should I just ignore this or say something?