Every D&D book these days has an amusing 'disclaimer' at the front, and the new Planescape slipcase set is no exception. Thanks to Veltharis ap Rylix for sharing these.
Sigil and the Outlands
DISCLAIMER: THE FACTIONS OF THE CITY OF DOORS ARE NOT RESPONSIBLE FOR SYMPTOMS ASSOCIATED WITH ACCIDENTALLY HAPPENING UPON THE CAGE. PLEASE CONSULT YOUR DOCTOR IF YOU EXPERIENCE ANY OF THE FOLLOWING: UPSET STOMACH, NAUSEA, EXISTENTIAL DREAD, CLEITHROPHOBIA, OR AN IRRESISTIBLE URGE TO WAX POETIC ABOUT PHILOSOPHIES RELATING TO THE MULTIVERSE.
Morte's Planar Parade
DISCLAIMER: EVERYTHING IN THIS BOOK IS TRUE—EXCEPT THE PARTS THAT AIN’T. THE PLANES CHANGE, COINS AND THREATS ADJUST A FEW DETAILS, BORING BITS GET MORE COLORFUL. YOU KNOW HOW IT IS. WHAT’S WHAT? YOU’RE A CAGEY SORT, CHIEF. I KNOW YOU’LL FIGURE IT OUT.
Turn of Fortune's Wheel
DISCLAIMER: FORTUNE’S WHEEL WELCOMES GUESTS AND CURRENCIES FROM ALL PLANES, REALITIES, AND TIMELINES. THE HOUSE TAKES NO RESPONSIBILITY FOR ANY HARM (FINANCIAL, PHYSICAL, EXISTENTIAL, OR OTHERWISE) ENDURED DURING GAMES OF CHANCE, IN INTERACTIONS WITH GUESTS OR HOUSE SECURITY, OR BY RUNNING AFOUL OF THE PROPRIETOR. GAMBLE RESPONSIBLY.