Personal example. I'm pretty much a happy go lucky sumbitch. It has taken years of practice, and I am not always on the money, but I try to take much of the world with a grain of salt. I laugh and joke a lot. The one time I do not joke or piss about is when I am armed, period. Firearms aren't toys. Toys aren't designed to eliminate the threat of you and yours being robbed or assaulted. It is serious stuff. It isn't funny and you shouldn't joke around about it. Having a firearm in your possession is a serious responsibility the entire time you have possession of it. I have never personally seen a clearing barrel that hasn't been dinged. Even pros screw the pooch.
Gun habits make you a responsible gun owner or an irresponsible gun owner. Once you learn it's hard to go back. Gun safety is 24/7 no matter if you are holding a pellet gun or a .50 cal. If you handle a pellet gun improperly you will handle a real gun improperly. If a lot of us pick up a water gun we are going to have our fingers OFF the trigger, habit and training.
If you handle a pellet gun with your finger on the trigger, I don't even want to be in the vicinity when you pick up a real handgun. I'm worried more about my butt than I am about yours.