Kid: "You think these ball bearings will get rid of a lot of the friction?"
Me: "Yeah.. those igus bearings were never meant for as much weight as we had on them."
Kid: "Ready for me to take the support off the elevator?"
Me: "Yeah... it wont go anywhere..."
Robot: (which had suddenly found a calling to become a guillotine
) SLAM!!! BANG!!! CRASH!!!!
Kid: "Yep... i think we got rid of a lot of friction."
Me: (looking like i've seen a ghost) yeah... yep... never seen a faster going-down elevator in my life.
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Stay safe everybody.... watch out for homicidal robots!!!!!
-q