Do you own a gun? If so, what the H-E-double hockey sticks causes you to be so concerned? Do you routinely carry? If so, what the H-E-double hockey sticks causes you to be so concerned? Or is being prepared for a violent confrontation outside your home normal, being prepared for a violent confrontation inside your home is perfectly acceptable, but being prepared for a violent confrontation inside your bathroom crosses the line into paranoia? I'm sure we all wish we could schedule violent encounters when it is most convenient for us, but unfortunately that is not possible.
If a few minutes every day unprotected in the shower is an acceptable risk for you, great. It would be for me too. But to criticize somebody for ensuring their own security while in the shower, on a sub-forum dedicated to strategies and tactics for situations that the vast majority of people will never encounter seems extremely hypocritical.