As soon as you left it, it became the classic "unattended object in an airport" and as we all know, the announcement is always "Unattended objects will be removed and blown up by the bomb squad."

Let us know if you get it back. I once forgot my coat but had time before boarding to run back to the check point and get it. Once sure does make you remember to not repeat that.

Now I count how many bins and bags I push into the x ray and wait for all to come out. Most pax seem to put their suitcase on the belt, then put the bins for shoes, baggie, laptop, and coat. It might slow the line a little, but I now try to grab the bins and put them in first with my suitcase last. When redressing, I have my shoes on and coat on and other possessions in hand before my suitcase comes out. Very unlikely to walk off holding a freedom baggie and laptop and no suitcase. Also the bins sail thru the xray, if there is a questionable object it is in the main bag. If they are going to pull it for a hand inspection, if all your bins come out first, you get your shoes on and valuables protected or at least in sight while they paw through your dirty laundry.