In my experience it depends on the management of each Bunnings as to the attitude of the staff working there to a large degree.
My son's best mate works at one Bunnings, they treat the staff reasonably well and the staff respond in kind to the customers and actually give a damn.
My BIL works at a different Bunnings where the staff are treated not so well. BIL does his best but it is difficult to keep motivated in that environment.
My mother did a horticultural course when she retired and got a part timme job at Bunnings (a third Bunnings). She was treated very badly (in my opinion) and would work at least 30 to 60 minutes after rostered finishing time to make sure the plants were organised and watered. The extra time was not paid time and my father often ended up going in to give her a hand. Whilst she was on breaks, or shopping after work customers would come up and ask her a question and she would drop what she was doing to give them a hand. She would start an hour early and ask to leave a little early to get to the grandkids performance/award ceremony etc and was told no way.
In the end she had the chance to go overseas for 8 weeks and asked for leave without pay. Was told she would have to resign and re-apply when she returned. She resigned but did not do the second part.
It really depends on the store, and the person.
Bunyip