#1) ** Catastrophic Printer Problems**
#2) ** Heat Block Hazard**
#3) ** Warping for the Fail**
#4) ** Humpty Dumpty Had a Great Fall**
#5) ** In Case of Printing, Break Glass**
#6) ** Connector Catastrophe**
#7) Spool Explosion
#8) ** Rooster Malfunction**
These and much more on the article posted at https://all3dp.com/2/epic-3d-printing-fails-and-why-they-failed/