Me: Hey, which calipers are these?
Tugrik: The broken one that we were gonna disassemble because they skip if you don't hold them vertical.
Me: Cool. *takes them to workbench*

(Ten minute of disassembly pass.)

Me: Huh. *futzes with myriad parts.*

(Ten more minutes pass with me re-assembling.)

Me: Umm, I really wasn't trying to, but I seem to have accidentally fixed the calipers.