I have a huge phobia of not being able to reassemble a firearm after breaking it down, so mine mostly just get half cleaning. I just have visions of little springs and slivers of metal flying everywhere. It’s the result of a bad experience I had 20 years ago with a P85 Ruger.
Right after I bought my first AR-15 I took the pistol grip off to replace with a more ergonomic grip.
I forgot to capture the tiny safety detent spring that goes in the top of the grip and it shot across my workshop never to be found.
Had to wait three days to get a new spring from Brownells for 85 cents.
NEVER take a Sig autoloader apart beyond removing the slide assembly.