Studyolic, the ashtrays are there so if some dumb passenger decides they are going to smoke they can at least dispose of it safely. Unfortunately they don't and drop it in toilet bin and risk causing a fire and killing all onboard
I have a really low tollerence level for people who smoke onboard the aircraft i shout at them like they are littlle children in front of all the other passengers. My favourite line is - "What makes you think you have the right to endanger my life and everyone elses life on here? Because that is what you have done!!!" I hope to make someone cry oneday preferably a man!!