I always go for the lowest urinal around--that water is cold, you know. Deep, too.

Fact is, with the tendancy of a fluid like urine to follow the porcilein right down, aim low, stand back, and hold all the wool well up and away from the fray. (See The Wiz's excellent comments above.) As to sitting on public toilets, well, I try not to, unless it's really necessary.

Keeping a small stash of wet wipes is also a good idea.

As for #2 . . . be very careful!