LSMFT wrote:
Most men don't realize how they **** all over the floor, all over the
toilet and all over the wall with their splatter unless they live
alone and clean their own bathrooms.
Besides sitting down, is there a way to reduce/stop splatter?

Several ways:
1. Use the sink.
2. Install an urinal.
3. Have a short length of hose available (B-17 pilots called it a 'relief
tube').
4. Get the female of the house to do the aiming.

But it's not only males that have the problem:

Here's a treatise for women on how to pee standing. Until they achieve
mastery of the technique, they can also expect splatters. Fortunately, women
have more practice at urination than men.

http://web.archive.org/web/200212050.../standing.html