Was having to decant one spool of filament onto my Stratasys spools as the one it came on will not fit.
With the donor spool freely hanging on a steel rod and the Stratasys spool on a long bolt into my drill off I went.
All was good until maybe 100 ft in when my butt discharged through the chair to ground. I nearly hit the roof.
Note to self (and anyone else that may try it) use an earthed loop to guide the filament, not your fingers.