Jancsi and the Legend of the Air Beast

I meet Jancsi every Thursdays at ten in the admin office on the ground floor to borrow the cart to deliver food to Parkdale Foodbank clients in the building. He is a big guy (at least 300 lbs.) of an age difficult to guess (I'd say thirty something to fifty something) with masses of dark hair covering his face and head. He also has remarkably small feet. His English is grammatically excellent and he has a perplexingly rich vocabulary all spoiled by his atrocious Hungarian accent. We say ”Hi!” and load the boxes from the trunk of my car onto the cart and go to the elevator. I used to start at the top floor working my way down but when I was paired with Jancsi he insisted we deliver in ascending order, I am easy, so this is how we do it: unit 103 first and 909, on the ninth floor,  last. Then we take the empty cart to the elevator, punch the down button and wait. Inevitably we end up looking at the dirty sign: ”EXIT AIR BEAST”. Jancsi jokes (I cannot tell if is German, Hungarian, English or his combination of the three) so I nod and smile to get the few seconds I need to untangle the words from his messy pronunciation. He usually quotes Schiller's Fiesco's Conspiracy at Genoa: ”The Moor has done his work—the Moor may go" He says: disappear, exit like us, the Air Beasts. We take the cart back to the office and say ”So long, until next week, yeah?”. Yesterday Jancsi stared at the so familiar sign for a long time and then started scratching the lower left-hand corner of the cardboard with his fingernail. In time, the grimy paper peeled off to reveal the surprising full original text: ”EXIT STAIR B EAST --->” Janci grabbed his heart and cried out: ”Jaj, Istenem!” and we laughed all the way to the office