Not all that long ago I was building a control line model and just finished putting the nut on the bolt which held the all-important bellcrank. I decided to put a drop of CA on the bolt threads to lock it up.

You guessed it - I not only locked the nut onto the bolt, but solidly locked up the nylon bellcrank to it's bushing. Had to rip everything out and redo. Only this time used Locktite.