Yes it still harmful because it is air pollution to your lungs. My kid's pediatrician used to tell me that I should change my clothes after smoking a cigarette and before I carry my baby.
In Scrum, a product backlog item (PBI, backlog item, or item) is a unit of work small enough to be completed by a team in one Sprint iteration. Backlog items are decomposed into one or more tasks. See also backlog effort estimation unit.
PBC is the name used in Australia, New Zealand and Canada to describe the practice of attaching contract payment to a set of performance metrics. It is commonly known as Performance-based logistics in the USA and Contracting for Availability or Contractor Logistics Support in the UK.