Rocket-Jump too High?

Look out, men! I can best a Demoman at this. A real fighter needs no triggered explosives to jump so high! Just watch me and my old Rocket Jumper do what you never will! KEEYAAAA!!! Take that, you drunken piece - OH MY GOD IT'S THE TOOTH FAIRY! GUYS LOOK IT'S - AHHHHHHHHHH!!!!!!!!!!

Only one other person has seen Cirno and lived. It was P-Body, in an accident with a Faith Plate. Atlas attempted it also, but he broke his re-assembler on contact. He will be missed.