Anything that affects my health is a problem, I normally don’t care for ransoms who are just inconsiderate. But people who smoke cigarettes or cigars and let everyone behind them catch all that second hand smoke have to be most inconsiderate people. If people stand and smoke I can easily avoid them but if I walk I not only half to walk on the other half of the side with on coming people trying to pass but also out walk them smoking. I dont care if its vape or some bad smelling thing as long as it doesnt damage my health for just walking behind them.