The crushed flusher

The show: Ally McBeal
The episode: "World's Without Love," from Season 2, now on Disc 2 for that season.
What happened: Georgia (Courtney Thorne-Smith) is sitting on a toilet in the unisex, reading National Law Review, when she hears a weird gurgling noise. She gets up from the toilet when Stephan (John's pet frog, presumed dead in the previous episode) jumps out of the toilet bowl and onto Georgia's face. Horrified, she gets out of the stall and throws the frog over to Nelle (Portia de Rossi) who tosses the animal back to Georgia and Georgia throws him back to Nelle but Richard (Greg Germann) opens the door to his stall and Stephan hits the door and falls to the floor. Soon there are a lot of people around the frog, when they hear the sound of a toilet being remotely flushed. Nelle stalls John (Peter MacNicol), who likes "a fresh bowl," from the entering the unisex bathroom to give Elaine (Jane Krakowski) time to sneak the frog out and over to a vet.
Why it doesn't quite make sense: Putting aside for a minute that we're supposed to believe that a frog could survive in septic plumbing for at least a couple of days, didn't John destroy his remote flusher in the previous episode?
Let's remember how Stephan came to be presumed dead in the previous episode, "Story of Love:" The frog was on the toilet seat of John's preferred stall, but when Richard tried to pick him up, he instead jumped into the bowl. At that very moment, John, about to enter the unisex, pushed the button on his remote flusher, causing Stephan to be flushed away. Later in the episode, Elaine collects the pieces of the remote flusher. It seems that John, angry at himself for pushing the button and causing Stephan's death, took his anger out on the device. Makes sense, given how much he loved that frog.
Now, in this episode, John is using the remote flusher again. I find it a little hard to believe that he'd go back to using it so casually. Even if he had a spare, wouldn't he be a little more judicious in its use, such as checking that the bowl contains only things he wants flushed? This also raises an issue of courtesy: if we're to believe that the most famous restroom in television history is the only restroom at the offices of Cage & Fish, where at least two dozen people are employed, wouldn't John be extremely rude in remotely flushing a toilet that might be in use by someone else?