Is it normal to dump water on carpet and pretend my dog pissed?

When I was in high school I had a hound dog. One time I had some classmates over to work on a school project for our Health class. My friend, Steve, came over a few minutes early. Steve and I decided to prank this dork named Dustin who was assigned to our group. Before Dustin came over, Steve and I poured a big glass of water onto the carpet in my bedroom - it was dark carpet so the wet spot was hard to see.

My dog was in my room with Steve and me when Dustin came over. I told Dustin he had to take his shoes off so he wouldn't track dirt in the house and then I led him up to my room. Not knowing where the wet spot was, Dustin stepped right in it. Dustin was like, "what did I step in." He thought it might be water, but I tricked him into believing that my dog had pissed on the carpet and had a carpet-peeing problem. Dustin was so upset about it that he actually started crying and then left to go home and change socks!

Steve and I laughed our asses off after Dustin left and a group of some of the meaner kids at school called him "dog piss" for the rest of the school year after they found out what happened!

Is it normal to dump water on carpet and pretend my dog pissed on it?