Yes that is a real thing!
The pressure-assisted toilets made by the Sloan valve company sold under the name flushmate have had recalls. (501-b and 503)
These pressurized toilets are known to fail and cause explosions. Significant property damage and some injuries have occurred due to these failures. There are two different flushmate models that are in question. The series 503 flushmate III and 501 – B series II. These systems can burst near the welded seam releasing stored pressure. This pressure can lift the tank lid and shatter the tank posing laceration hazards and property damage
The date code range for units included in this recall March 1, 2008 – June 30, 2009 and October 14, 1997- February 29, 2008. Units included in this recall were sold individually and installed in toilets manufactured by American Standard, Crane, Ecotech, Eljer, Gerber, Kohler, Mancesa, Mansfield, Orion, St. Thomas, Universal Rundle, Vitra, Vitromex and Western Pottery.
Read about these recalls on the Consumer Product Safety Commission website.