You can smoke to the butt ...

if you mix the hot smoke in your' mouth with cool air .

Drag on the smoke and hold it in your' mouth . Then breathe in cool air into your' mouth and then in to the lungs .

This works best if you smoke thin cigarettes where not much hot smoke is generated . Do not breathe in too much hot . Standard cigarettes generate too much hot smoke for my liking . I smoke thin rollies .

The problem remaining is the heat of the fire on your' fingers and lips .