Maybe I should stop riding 7 abreast and taking potshots at drivers with my semi-automatics shotgun...
Absolutely you should. It worries me that you ever thought this sort of thing was appropriate.
Riding 7-abreast is just selfish and likely to cause an obstruction.
Use of a fire arm in a public place is very dangerous and might compromise the safety of both other road users and the general public.
You will have noted that the HC (whilst not specifically discouraging either behaviour) does not encourage this sort of thing.
Similarly, the cooking of kedgeree and the singing of little known Verdi arias are strongly discourage while riding a bicycle.