Little puzzling but...how can you say they are 'often' at the Kingpower, stating you went 'once to a friendly'?
Much of my family are Leicester...those that go will tell you otherwise about the frequency (and certainly use) of said silly implements!
Not that it remotely matters, but to answer your question given that it implies inaccuracy in my post, I also have family who attend (also the reason I was there on the aforementioned day) and unfortunately I have had to bear the audible proof, as they have brought home the clackers on numerous occasions since the Championship year. I used the pre-season friendly as it was the most prominent example of said madness. Maybe it depends where you sit, although to be fair I haven't seen any return recently.