Abuse in Minerals for sure, maybe Resources, possibly some in Cadastral, but not sure. The employees who abuse work schedules are in every office, they're not many in number, but oftentimes the few ruin the options for the many who are not abusers. Sometimes no policy indicates unfairness to non-smokers. Not all smokers abuse the breaks, but the opportunity exists for definite abuse. No, but I can only speak for my Division.
Nobody knows the answer to percentage of abuse.
There is no problem in my office - External Affairs. Yes, long breaks. Not letting coworkers of their breaks. Don't know, but seems there's some problem. Yes, individual, not a Division or Branch issue.