"David Laight" <David.Laight@btinternet.com>  wrote:
 > Yes - and be VERY careful not to let the 2 magnets touch, you wont get
 > them apart ever, never, not at all.
 > 
 > We took apart a 5.25" differential scsi disk, the magnents from that
 > are lethal.  Carry one in a pocket, and it sticks to random items.
 > Not helped by the UK 'bronze' coins being ferro-magnetic.

They're also ceramic magnets so they're fairly brittle. If you let them
slide together  or slap one another, they'll break...