Earlier quoted context omitted.
You’d also have to consider bathtub usage (I shower daily, but only take a bath every couple of months)
Yeah, but the anti skid pad in my bathtub (which might prevent drownings) is slippery when damp, so I fell in the bath while taking a shower, and could have been killed. I guess that sort of death goes under the “drowning” category, since the bath mitigation can kill shower-takers.
How could it be? Do you plug your drain when you shower? Are the investigators in your area too lazy to find head trauma?