Can't believe you don't know about bush week, Jayne!
For those who don't, it's an old saying .... we usually say 'What do you think this is, bush week?' and here's why:
It's an indignant response to someone who
is taking you for a fool —’You’re going to charge me how much?
What do you think this is, bush week?’ ‘Bush week’ is a
time when country people come to town, and the phrase
implies that they are easily fooled by the more sophisticated city
slickers. The speaker resents being mistaken for a country
So there generally isn't any shooting during bush week. Just shooting off of the mouth!