Yeah, I used to do that most times, still do, when i feel kinda in a hurry. Thought I was the only one. But it can leave a yellow tint in the water. And a bit of froth?
F*ck that I dont even aim anymore, its fun to go to Frat parties and house parties and wait till everyone is nice and drunk then piss all over the bathroom, on the toilet seat, the sink, on the toilet paper, and on the hand towel, then leave the party.