Love the super glue one.
Reminds me of this guy that bought his Guitar in for me to sort out a potentiometer drama.
So, I have this really nice Alembic lying on my bench looking sexier than Elle Macpherson, but with a tone pot that wont turn.
Hmmmmm.
So I try and pop the knob off with the trusty knob puller and the damn thing wont budge.. WTF?
It was then the owner piped up and said "the knob kept falling off so I super glued it on".....
Holy Crap Batman!
The glue had run down the shaft, through the nut threads and boom. The shaft was glued solid...

$580 later and a rather full workshop swear jar, the damage was repaired.

Moral is, dont use super glue to hold ya knob on