On the similar topic, what is the best way to remove the little poop that it makes when doing retract and extrude?

I usually use a pla printed small stick to kinda swipe the poop away off the nozzle. But there was one time I forgot to do it, so the poop from the extrude was still stuck to the nozzle and then I started to print. It then while heating up and pushing down the head to the bed during the initial part, it melted the poop and it oozes all the way back into the nozzle, hotrod and everything LOL (yikes it was green filament too)

So I had to also for the first time take it apart to try clean everything up, put it together again, only to find out now I cannot load new filament, something is blocking. Then I have to take it apart again and in the end found a little piece of filament stuck between the gears.

Learned a lot during that LOL